Divers Online
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.
: 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. Divers
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 offer notebooks with plastic-based or coated pages that