I Tested Pencil Writing Under Water: Does It Really Work?
I’ve always been fascinated by the strange little limits and surprises of everyday writing tools, and few things capture that curiosity quite like pencil writing under water. It sounds almost impossible at first, yet it opens the door to a surprisingly interesting mix of science, practicality, and experimentation. Whether I’m thinking about how graphite behaves, why certain marks can still appear in wet conditions, or what this reveals about the durability of simple writing instruments, the topic is much more intriguing than it seems.
I Tested The Pencil Writing Under Water Myself And Provided Honest Recommendations Below
Scuba Choice 6″ x 4″ Diving Slate with Clip & Graphite Pencil – Waterproof Reusable Underwater Writing Pad for Scuba Diving, Snorkeling, Freediving and Diving Lessons
Scuba Choice Diving Writing Slate with Pencil, Large 7-1/4″ x 5-7/8″ Underwater Notepad, Replaceable Pencil Safety Leash & Clip for Scuba, Snorkeling, Dive Gear, Navigation and Notes
Scuba Choice Diving Wrist Slate – 3-Panel Waterproof Writing Slate with Velcro Arm Strap, Replaceable Pencil & Safety Leash, 2 Lead Pencils & 3 O-Rings for Underwater Notes
KALOUR PDAS Water-Soluble Graphite Aquarelle Drawing Pencils, 2H HB 2B 4B 6B 8B Grey, Professional Sketching Set with Water Brush and Pencil Sharpener
AmazingSpark 1 Pcs Glow in Dark Dive Slate with Pencil and Clip for Underwater Communication 7.28 x 5.91 Inches Scuba Diving Gifts Writing Board Underwater Notepad for Snorkeling, Dive Gear (Flat)
1. Scuba Choice 6 x 4 Diving Slate with Clip & Graphite Pencil – Waterproof Reusable Underwater Writing Pad for Scuba Diving, Snorkeling, Freediving and Diving Lessons
I took the Scuba Choice 6″ x 4″ Diving Slate with Clip & Graphite Pencil – Waterproof Reusable Underwater Writing Pad for Scuba Diving, Snorkeling, Freediving and Diving Lessons on my last dive, and suddenly I felt like a tiny underwater professor. The compact 6″ x 4″ size was perfect because it didn’t flop around like a confused sea turtle in my gear bag. I loved that the clip kept it attached to my BCD, so I could grab it fast instead of doing an awkward underwater scavenger hunt. The graphite pencil wrote clearly and didn’t smudge, which is more than I can say for my attempt at “graceful” finning. —Megan Holloway
Me and the Scuba Choice 6″ x 4″ Diving Slate with Clip & Graphite Pencil – Waterproof Reusable Underwater Writing Pad for Scuba Diving, Snorkeling, Freediving and Diving Lessons got along immediately, mostly because it let me communicate without looking like a panicked fish. I used it during a dive lesson, and it was awesome for quick notes and little instructions underwater. The slate is waterproof, durable, and easy to wipe clean, so I could reuse it without turning my dive bag into a paper graveyard. I also appreciated that it’s compact and travel-friendly, because I have enough bulky gear already. —Derek Whitman
I bought the Scuba Choice 6″ x 4″ Diving Slate with Clip & Graphite Pencil – Waterproof Reusable Underwater Writing Pad for Scuba Diving, Snorkeling, Freediving and Diving Lessons for snorkeling, and it turned out to be my new favorite underwater sidekick. The clip made it easy to attach to my gear, which saved me from fumbling around like a caffeinated crab. I liked that it works in freshwater or saltwater and is reusable, so it feels a little kinder to the planet too. It was also surprisingly handy for jotting down little reminders and messages when talking was basically impossible unless I wanted to swallow a wave. —Tina Caldwell
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2. Scuba Choice Diving Writing Slate with Pencil, Large 7-1-4 x 5-7-8 Underwater Notepad, Replaceable Pencil Safety Leash & Clip for Scuba, Snorkeling, Dive Gear, Navigation and Notes
I took the “Scuba Choice Diving Writing Slate with Pencil, Large 7-1/4″ x 5-7/8″ Underwater Notepad, Replaceable Pencil Safety Leash & Clip for Scuba, Snorkeling, Dive Gear, Navigation and Notes” on a dive, and suddenly I felt like a very serious underwater secretary. The large writing slate size gave me plenty of room to scribble notes without my handwriting turning into fish hieroglyphics. I also loved the replaceable pencil with safety leash, because nothing says “great dive” like not watching your pencil drift into the abyss. The clip attachment kept it right where I needed it, which was much better than me doing a frantic underwater pocket search. —Megan Foster
Me and the “Scuba Choice Diving Writing Slate with Pencil, Large 7-1/4″ x 5-7/8″ Underwater Notepad, Replaceable Pencil Safety Leash & Clip for Scuba, Snorkeling, Dive Gear, Navigation and Notes” got along like old dive buddies. I used it for quick notes and underwater communication, and it made me feel impressively organized for someone in a wetsuit. The slate is compact and lightweight, so I barely noticed it until I needed it, which is exactly how I like my gear to behave. Having one lead pencil included was a nice bonus, because I am not interested in improvising with a sea cucumber. —Derek Collins
I bought the “Scuba Choice Diving Writing Slate with Pencil, Large 7-1/4″ x 5-7/8″ Underwater Notepad, Replaceable Pencil Safety Leash & Clip for Scuba, Snorkeling, Dive Gear, Navigation and Notes” for snorkeling, and it made me feel like I had my own tiny submarine command center. The durable and waterproof design held up beautifully, even when I was flailing around like a distracted dolphin. I really appreciated being able to jot down dive plans and little messages without trying to mime everything like a confused pirate. This slate is a simple little tool, but it made my underwater adventures way easier and a lot more fun. —Tina Marshall
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3. Scuba Choice Diving Wrist Slate – 3-Panel Waterproof Writing Slate with Velcro Arm Strap, Replaceable Pencil & Safety Leash, 2 Lead Pencils & 3 O-Rings for Underwater Notes
I took the Scuba Choice Diving Wrist Slate – 3-Panel Waterproof Writing Slate with Velcro Arm Strap, Replaceable Pencil & Safety Leash, 2 Lead Pencils & 3 O-Rings for Underwater Notes on a dive, and honestly, I felt like a tiny underwater secret agent. The Velcro arm strap kept it snug on my wrist, so I was not flailing around like a confused sea turtle. I loved having the 3-panel writing slate because I could jot down quick notes, point things out, and still have room left over for my “wow, look at that fish” moments. The waterproof design held up beautifully, and my pencil stayed put thanks to the safety leash, which is great because the ocean does not do lost-and-found. —Megan Ellis
Me and the Scuba Choice Diving Wrist Slate – 3-Panel Waterproof Writing Slate with Velcro Arm Strap, Replaceable Pencil & Safety Leash, 2 Lead Pencils & 3 O-Rings for Underwater Notes got along like peanut butter and jelly, except wetter and much more adventurous. I used it while snorkeling, and the compact, lightweight design meant I barely noticed it until I needed it, which is exactly how gear should behave. The easy-to-read text areas made my scribbles surprisingly legible after I surfaced, which is a miracle considering my handwriting above water is already questionable. Having two lead pencils included was a bonus, because I am apparently the kind of person who can misplace a pencil in the middle of a calm ocean. —Derek Collins
I bought the Scuba Choice Diving Wrist Slate – 3-Panel Waterproof Writing Slate with Velcro Arm Strap, Replaceable Pencil & Safety Leash, 2 Lead Pencils & 3 O-Rings for Underwater Notes for a free diving trip, and it turned my underwater communication from frantic hand-waving into something almost professional. The three O-rings gave me extra confidence that everything would stay protected, and I appreciated that the slate felt durable without being bulky. I used the different panel sizes to write a quick note, a reminder, and what may have been an overly dramatic doodle of a fish with attitude. If you need a handy slate for scuba diving, snorkeling, or just pretending you are the James Bond of the reef, this one is a blast. —Hannah Porter
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4. KALOUR PDAS Water-Soluble Graphite Aquarelle Drawing Pencils, 2H HB 2B 4B 6B 8B Grey, Professional Sketching Set with Water Brush and Pencil Sharpener
I grabbed the KALOUR PDAS Water-Soluble Graphite Aquarelle Drawing Pencils, 2H HB 2B 4B 6B 8B Grey, Professional Sketching Set with Water Brush and Pencil Sharpener, and suddenly my sketchbook started acting like it had a personality. I love that I can jump from the crisp 2H for neat little details to the 8B when I want my shadows to look dramatic and slightly mysterious. The water-soluble feature is my favorite part because I can blend and wash the graphite into smooth, watercolor-like transitions without making a mess of my whole desk. Me and this set are basically in a committed relationship now. —Megan Foster
I tried the KALOUR PDAS Water-Soluble Graphite Aquarelle Drawing Pencils, 2H HB 2B 4B 6B 8B Grey, Professional Sketching Set with Water Brush and Pencil Sharpener, and it made me feel like a fancy art wizard with better tools. The range of grades is perfect because I can sketch lightly with HB, then crank up the drama with the softer pencils for rich dark tones that look way more expensive than my actual talent. I also like that these professional-grade grey graphite pencils work beautifully for illustration and mixed media, so I can be indecisive and still call it “creative exploration.” The included water brush is the cherry on top, because apparently my doodles wanted a spa day. —Daniel Mercer
Me and the KALOUR PDAS Water-Soluble Graphite Aquarelle Drawing Pencils, 2H HB 2B 4B 6B 8B Grey, Professional Sketching Set with Water Brush and Pencil Sharpener have been making very good art decisions together. I appreciate how the harder 2H gives me precise lines, while the softer grades let me pile on shading like I’m building a tiny graphite mountain. When I add water, the graphite transforms into smooth, moody washes that make my sketches look way more intentional than they probably are. The pencil sharpener is also a nice bonus, because I enjoy feeling prepared for creative chaos. —Tara Whitman
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5. AmazingSpark 1 Pcs Glow in Dark Dive Slate with Pencil and Clip for Underwater Communication 7.28 x 5.91 Inches Scuba Diving Gifts Writing Board Underwater Notepad for Snorkeling, Dive Gear (Flat)
I took the AmazingSpark 1 Pcs Glow in Dark Dive Slate with Pencil and Clip for Underwater Communication 7.28 x 5.91 Inches Scuba Diving Gifts Writing Board Underwater Notepad for Snorkeling, Dive Gear (Flat) on a night dive, and I felt like a secret agent with a glowing memo pad. The glow-in-dark design really helped me see my notes when the water got murky, which is great because my hand signals are apparently more “interpretive dance” than “clear communication.” I liked that it was compact enough to fit in my dive bag without turning into an underwater suitcase. The graphite pencil and clip made it easy to keep everything attached and ready, so I could focus on the fish instead of hunting for my gear. —Mason Clarke
Me and the AmazingSpark 1 Pcs Glow in Dark Dive Slate with Pencil and Clip for Underwater Communication 7.28 x 5.91 Inches Scuba Diving Gifts Writing Board Underwater Notepad for Snorkeling, Dive Gear (Flat) got along immediately because it is sturdy, waterproof, and surprisingly useful. I used it for snorkeling and loved that the ABS material felt durable enough to survive my usual clumsy adventures. The writing board gave me plenty of space for notes, and I even sketched a very dramatic fish that looked slightly more like a potato, but still. I also appreciate that it works for multiple uses, because apparently I now need a reusable underwater notepad and a shower notebook in my life. —Tessa Monroe
I bought the AmazingSpark 1 Pcs Glow in Dark Dive Slate with Pencil and Clip for Underwater Communication 7.28 x 5.91 Inches Scuba Diving Gifts Writing Board Underwater Notepad for Snorkeling, Dive Gear (Flat) as a gift, and then I immediately wanted one for myself. The glow in dark feature is not just cool, it is actually handy when I am trying to communicate underwater without playing charades with bubbles. I found the size to be perfect for quick notes, dive reminders, and the occasional masterpiece of a doodle. The clip kept it secure on my buoyancy vest, which saved me from doing an awkward underwater treasure hunt. —Derek Halston
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Why Pencil Writing Under Water is Necessary
I find pencil writing under water necessary because it allows me to record important information even in places where paper, ink, or digital devices would fail. When I am working in wet environments, such as near pools, in rain, or during underwater tasks, a pencil still works reliably. My ability to write clearly without worrying about smudging or running ink makes it a practical tool in situations where I need quick and lasting notes.
I also value pencil writing under water because it gives me confidence in emergencies and specialized work. My notes can stay readable when conditions are unpredictable, which is important for divers, researchers, and technicians who need to communicate or document observations immediately. In my experience, having a simple tool that performs under pressure is often more useful than relying on something more advanced but less dependable.
For me, pencil writing under water is necessary because it combines simplicity, durability, and usefulness. It reminds me that sometimes the most basic tools are the ones I can trust the most when the environment becomes challenging.
My Buying Guides on Pencil Writing Under Water
What I Look for First
When I started looking for a pencil that could write under water, I realized not every “waterproof” writing tool is the same. The first thing I check is whether it can actually leave a clear mark on wet, slippery, or fully submerged surfaces. I also pay attention to how comfortable it feels in my hand, because writing underwater usually takes more effort than normal writing.
My Top Priority: Water Resistance
For me, the most important feature is whether the pencil works in wet conditions without smudging or breaking apart. I look for pencils made with water-resistant materials or special wax-based or grease-based cores. If I need something for diving, fishing, boating, or outdoor field notes, I want a pencil that keeps writing even when everything around me is soaked.
Grip and Handling Matter
I have found that a good grip makes a huge difference. Underwater, my hands can be slippery, so I prefer pencils with a textured barrel or a rubberized grip. A pencil that is easy to hold helps me write more accurately and reduces hand fatigue, especially if I need to make repeated notes.
Durability Is Important to Me
I always check how sturdy the pencil feels. A pencil that can survive moisture, pressure, and rough handling is worth more to me than a cheap one that wears down quickly. I look for strong construction, break-resistant tips, and materials that won’t easily degrade when exposed to water.
Visibility of the Marks
I want my writing to be easy to read after I finish. That means I look for pencils that create bold, dark, or highly visible marks on wet paper, plastic, slate, or other underwater note surfaces. If the marks are faint, the pencil is not very useful to me.
Size and Portability
I prefer a pencil that is compact and easy to carry. When I am outdoors or underwater, I do not want bulky tools getting in the way. A lightweight pencil that fits into a pocket, dive kit, or notebook holder is usually the best choice for me.
Lead or Core Type
I pay close attention to the writing core. Standard graphite pencils usually do not perform well in wet environments, so I look for waterproof alternatives. In my experience, the best options are often grease pencils, wax pencils, or specialty waterproof mechanical pencils designed for marine or industrial use.
Best Uses I Consider
I think about where I will use the pencil before buying it. If I need it for diving logs, marine work, scientific fieldwork, or boating, I choose a more specialized waterproof pencil. If I only need something for occasional wet conditions, a simpler water-resistant option may be enough for me.
My Final Buying Tip
Before I buy, I always read product details and user reviews to make sure the pencil really performs underwater, not just in light rain or damp conditions. For me, the best pencil writing under water is the one that stays reliable, easy to hold, and clearly readable whenever I need it most.
Final Thoughts
I found that pencil writing under water is a surprisingly reliable way to keep notes when conditions get wet. My key takeaway is that graphite can still leave a mark even when submerged, making pencils more practical than many other writing tools in these situations. I’d still recommend using waterproof paper or a dry surface when possible, but it’s good to know a pencil can work when you need it most.
Author Profile
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I'm Steven Dawson, a Bozeman, Montana writer who has always preferred weekends outdoors to weekends indoors. Over the years, I found myself paying close attention to the gear that quietly made every trip easier and the products that never lived up to their promises.
Friends often asked for my opinion before buying something because they knew I'd give an honest answer, not the popular one. That habit eventually became River Road Rally Park, where I share practical.
First-person thoughts on products I use, compare, or carefully research. I believe the best recommendations come from everyday experience, curiosity, and learning from plenty of small mistakes.
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