I want to take a long desired trip to the Ambergris Caye in Belize to celebrate my 50th Birthday. However, since I want to include my 16 year old son, July is the only month we can go. I know it may be hot and rainy but any other advice? ie: activities, bugs, crowds, water condition? We are avid snorkelers, beginner divers and very non-fussy. Considering "The Tree House" for accommodation.