If you do, how do you keep them safe [and dry]? I'm picturing leaving them in a bag on a beach unattended while we're in the water- yikes , what if someone takes them?
Once you have cleared immigration (on the ship), you will not need your passport to get on or off the ship. However you WILL need a photo ID of some kind. A driver's license or a state issued photo ID will work for this. You can leave your passport in your safe in your cabin. Just make sure you take some other form of photo ID with you at the ports.
Some beaches do have locker facilities where you can store valuables. Also, I purchased on board ship the necklace style cases that will hold a few items such as ID, room keys, etc. which would be very handy for the beach.
While you are touring the islands, it is a good idea to remember you are on foreign soil, and some type of ID is good to have with you in case of emergency.
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