This is our second time down the west coast of Mexico, first leg of a full Panama on Celebrity Summit Nov 23/07. Looking for suggestions for excursions At Cabo, Acapulco (already done the cliff divers), Huatalco, Puntarenas CR. Also Cartagena, Columbia. We snorkel but don't dive, are fit and fifty plus, enjoy beaches, history, adventure tours, done zip lines, love kayaks, DON'T need shopping or dining, golf or walk-about guided tours. Anyone booked excursions on this Summit itinerary?