Sunday in Old San Juan is great. Check into the ship by 2:00, then explore Old San Juan. Go to the Fort and Fly a Kite, walk into the heart of the city and have a beer at La Taberna Lupulo, the largest craft brew bar in the Caribbean. Make your way down to the Paseo De La Princesa. Buy a glass of fresh orange juice for 1.00 and dance with the salsa and cha cha with the locals.
Soufriere tour. Started out on a hour Catamaran to Soulfriere. Toured the rainforest and crater, ate a great lunch then back on the Catamaran, snorkeled some great reefs, then party back to the ship (dropped us off right at the boat).
Sunset beach at the airport (make sure you get there before 10:00 or no more room). Lounge chairs and umbrella for 10.00 a person and drink prices between 3.00-4.00, also great white sand beach with mild swells.