I know there has been other posts on this subject but we will be travelling with our girls ages 9 & 12. We like to snorkel off the beach, do some adventurous activities and also relax on the beach. We usually go to Isla Mujeres and Akumal every year but are looking for something new. I am thinking of Belize, Costa Rica, Isla Holbox, etc... for our vacation in July. Any ideas would be welcome, thanks.