Divers -

: These use magnetized grains (similar to an Etch A Sketch) and are very easy to read underwater, though they can be bulkier than standard slates. Diver-Themed Paper Crafts

offer notebooks with plastic-based or coated pages that can be completely submerged in salt water without disintegrating. These are popular for research, recording dive times, or mapping wrecks. Divers

Depending on whether you're looking for something to take into the ocean or a fun project for land, here are a few ways to "come up with a paper" related to divers: : These use magnetized grains (similar to an

: While not technically paper, these are the industry standard for quick communication. They are made of white plastic and used with a graphite pencil . You can erase the lead later using a Magic Eraser or a bit of sand. Depending on whether you're looking for something to

If you need to write while submerged, standard paper won't work. Divers use specialized materials designed for the marine environment: : Brands like Rite in the Rain