Besides the good suggestions already made, I would suggest a little travel kit with:
- some sort of sunburn cream with lidocaine in it like Solarcaine.
- analgesic (aspirin, tyllenol, ibuprofin... your preference)
- hydrocortisone cream (for any itchies/bites... yes you CAN get insect bites if you are close enough to land). Likewise an anti-histamine.
-immodium.
- long lasting decongestant (if you are prone to those kinds of problems).
- some bandaids & antibiotic cream.
- any personal medications you need.
Remember, you usually do not make landfall from the time you leave their home port until the time they come back to it, so make sure you have EVERYTHING you could need. Especially important is a cover-up, hat and sunglasses.
You might also want to consider a paperback.
~SubMariner~