What is the best day of the week to go to Xel-ha for snorkling. I have been reading this is the better place to go with the kids to start out as a beginner. I am also wondering if we should book before we leave or can your hotel usually book it for you? Also, Cozumel question, how long of a boat trip is it to go over there? Also Xcaret is something we want to do too! Is there a good day to go. I am starting to want to plan our week a little, but mostly want to keep the kids entertained, with their new snorkle equipment. Thanks!