We will be 1st time cruisers on and heading to Nassau, Cayman, Aruba, and Bonaire in mid November. We are hoping to have easy, low-key options at some of the ports that do not require as much $$$ and reservations. Any advice on ports that have fun, easy options for just enjoying the beach (maybe with own snorkel gear) or town at any of these locations? Will Celebrity share more info on options like this once on board? TY!