SuzyD, the water is fantastic. It is better than bottled water. You could bring a couple of bottles and refill them for shore excursions.
I have seen people left in many islands, running towards the ship, waving frantically, and watching us as we sail. I have also seen many people bidding us a bon voyage from the shore as we sail past, in Ft. Lauderdale, Miami, and some of the islands. It's a great thing to watch, so be out on your balcony or up on deck for the sail aways.