The classic Caribbean postcard day: sail a 65-ft catamaran out to an uninhabited cay of powder-white sand, turquoise shallows and a living reef in the Cordillera Reefs Nature Reserve. Open bar (pina coladas, local beer), buffet lunch, a water slide and snorkel gear are all included, run by Puerto Rico's longest-operating catamaran company (since 1994). Note the clock: it's a 6-hr trip departing Fajardo (~1 hr drive from the pier), so it realistically needs a long port day with an early start or an overnight -- confirm against your ship's all-aboard.
What to expect
You'll board a 65-foot catamaran in Fajardo for a sail into the Cordillera Reefs Nature Reserve, where powder-white sand and turquoise shallows rim Icacos Island—an uninhabited cay that looks like a Caribbean postcard. Once anchored, you'll slip into your snorkel gear to explore a living reef system, then surface for an open bar (pina coladas, local beer) and a buffet lunch on deck. A water slide off the boat's platform caps the afternoon before the sail back to port, completing a full immersion in classic Caribbean rhythm.
Direct wins on price and quality. The ship's catamaran sail & snorkel runs ~$147-$150/person; booking East Island direct at $135 saves ~$15 and puts you on a longer-established boat. If your port day is short, the cheaper honest play is a $0-entry DIY snorkel at Escambron Beach, a ~10-min taxi from the pier -- skip the open-water sail entirely rather than risk the all-aboard.
Good to know
The round-trip is 6 hours with a ~1-hour drive from the San Juan pier to Fajardo, so you'll need either a long port day with an early departure or an overnight—confirm your ship's all-aboard time before booking. Secure San Juan round-trip transport separately if the operator doesn't include it; factor 2–2.5 hours for ground travel each way. Bring reef-safe sunscreen, a towel, and a change of dry clothes; snorkel gear is provided but your own mask and fins ensure comfort. Book directly with East Island Excursions ($135/adult, $115/child plus 11.5% tax and $3 DRNA fee) rather than the ship's catamaran option for both price savings and a longer-established vessel.