You will definitely want to bring your bathing suit.. and some casual day/evening wear also.
Toiletries and Medical Supplies: I usually take my own when travelling, but you can buy toiletries here.
Take your medical supplies with you.
Photo Equipment: Bring your photographic equipment. Might also be a good idea to bring extra film and batteries as well. Could be expensive here.
Miscellaneous: Sunscreen and insect repellent, or you can buy these items here.