Beach Snorkeling Recommendations

[miss_rach]

This is the only ABC Island we have not been to and have heard some say it has some of the best snorkeling in the entire Caribbean.  Looking for some recommendations for some beach snorkeling.  I have my own equipment and very experienced/strong swimmer.  My wife doesn't snorkel so need to find a place we can take a bus/taxi, etc...with a place for her to sit for a few hours in a chair and that sells drinks and maybe snacks while I do some snorkeling.

 

  Thanx for the help!