EXPLORA II

A small-group trip into the only tropical rainforest in the U.S. National Forest system to hike, swim in river pools and ride a natural rock waterslide.

Glide along San Juan's coast with an underwater jet scooter, looking for sea turtles on the reef. Videos of your swim are included, and it takes about 90 minutes.

See the colorful streets, forts and city walls of Old San Juan by golf cart, covering more ground than on foot, just steps from the cruise pier.

Circle all of Antigua by speedboat, stopping to snorkel, swim at Stingray City and see Devil's Bridge and the island's quiet bays from the water.

A guided drive to the island's highlights, including Nelson's Dockyard, the view from Shirley Heights and some of Antigua's famous beaches.

Zip around Antigua in an open-air tuk-tuk, through the rainforest and on to a couple of beaches, for a fun, laid-back half day.

The classic Tuscany port day: Renaissance Florence with its Duomo and Ponte Vecchio, plus the Leaning Tower in Pisa, with a local tasting along the way.

A private day on the Italian Riviera visiting the colorful cliffside fishing villages of the Cinque Terre, with time to wander, eat and take in the sea views.

Trade the crowds of Florence for Tuscany's medieval hill towns: Siena's shell-shaped Piazza del Campo and the stone towers of San Gimignano, with rolling vineyard views in between.