Anyone ever travel on Princess' Grand Princess to the Western Caribbean?

I am wondering if anyone can recommend a particular shore excursion. I would love feedback before I travel in February.

Wish I had your itinerary. Cozumel is beautiful, water is Turquoise, snorkeling and diving great. Neat shops, silver jewelry cheap, you can rent Mopeds and visit the Mayan Ruins outside the city. You'll need a valid drivers license, and a credit card. As in any port, prices are cheaper if you do not go to the high end shops closest to the port. Go in a street or two, you'll get better prices, which are usually negotiable. Cancun is also beautiful, but more commercial.