Does anyone have any suggestions for excursions in Cozumel and Grand Cayman. Honestly I think I really just want to relax at the beach. Is it worth doing the beach excursions offered by Carnival? Or should I just go to a beach on my own? For Grand Cayman I think I am just going to take a taki to the 7 mile beach. But in Cozumel, has anyone ever done the beach excurssion offered by Cozumel? Is the place nice? Is it worth the 29 dollars? Or any other suggestions. Thanks!