We're visiting AC for the first time...looking forward to experiencing the good eye-contact and tranquility that all you multi-timers seem to rave about. We are bringing our 2 girls 12 &15 and wondering if they will be as impressed. They love the water...dad dives, and mom snorkels...is there a place where we can make everybody happy? We are staying at the Costa Mayan Resort. What are some of the things that we must do or see on our trip and what do we need to know as first timers to get the best out of AC? Also, is there a rainforest? Thanks for any feedback!!!