If you feel naked without your diamonds and emeralds, or a lot of cash on hand, then bring them along. But place all valuables in the safe deposit box in your cabin or at the Purser's Desk when not using them. If you know you will need a box, see the Purser immediately upon embarkation, as the number of boxes is limited. The Amsterdam offers individual safes in each cabin. The elements are no friend to your camera.
Sea spray can damage lenses and sand can cause irreparable damage to other parts of the camera.
Use caution - don't leave your camera sitting out in the sun on deck or on the beach. We recommend that you bring along enough film for the duration of your cruise, in addition to a spare set of batteries. These items are more expensive on board or in port than at home. This has become less of a problem over the last several years as all cruise ships are now equipped with stabilizers to lessen the roll of the ship. The waters of the Caribbean are comparatively shallow and generally do not get very rough.