Most of the excursions provide lunch if you are going to be gone for the day. Other wise for the most part you can buy lunch while you are out or
if close enough you can go back to the ship have lunch and then take off
on the island again.
Dont think you can take any thing off the ship in the food line just like
a bottle of water or pop.
Trying different foods on the island is always fun.
Welcome aboard and have a great cruise..