Welcome Penny!
OUr favorite excursion is the Twister to Isle de Pasion in Cozumel. You get to the island by high speed ciagar boat, which is a blast. The island has a white sand beach, chairs, hammocks, bar, restaurant, shops etc. Also have "water toys" for rental. You can lay back and relax or do what ever you want. It is not crowded. You get back to the ship by the same boat. I won't tell you were the name twister comes into this but it is fun!