You'll use your Sail and Sign card for everything. One meal per person is included or you can purchase a meal at a full service restaurant for 25% off. Kids eat free at the full service restaurant when they order the kids' meal. Meal choices include seafood, burgers and fries, pizza, tacos, and more. There are sides, snacks, and ice cream available for purchase. There are free water stations around the island. Our group just got the included meals which ended up being too much to eat, plus one ice cream for the kids to split while we walked back to the ship.
There are several shore excursions, or you can just hang on the island like we did. We did purchase the wristbands to allow access to the two big water slides. There are volleyball and basketball courts, ping pong tables, as well as a music play area for kids. You'll want to check your events for the day for the parade. It was after lunch during our day there. If you need help walking, there is a tram that runs regularly through the entire area.