My scuba guy & I are going on a cruise in just a few short weeks ( thank goodness - I hear the call of the great aqua blue). We will be stopping in Calica/Playa del Carmen on Wednesday Oct 11th. Unfortunately, the cruise line has taken the "C" dive off the excursion line-up and all that remains is the "20 minute tourist dunk". Any recommendations as to local dive shops to set up some dive action on my own? We'll be in port for about 6-7 hours. Appreciate any help!! Ciao for now. ~S.