A typical catamaran trip from San Juan means a 45–60 minute ride east to the reefs and small cays near Fajardo. Once there you’ll spend a few hours snorkeling, swimming, and eating. The boat itself is stable, usually 40–60 feet, with shaded seating and a basic toilet. Expect a mix of 15–35 people depending on the size; it’s social but not a party boat unless you pick the rum-heavy version. The water is clear, the snorkeling is decent for beginners (lots of small fish, occasional turtles), and the crew handles the sailing and gear. It’s not wilderness—other boats will be anchored nearby—but it’s the easiest way to get offshore without needing your own transportation.
Best time is December through April when the trade winds are steadier and rain is less likely. Summer and fall can be calmer but bring higher humidity, stronger sun, and hurricane risk. Expect to pay around $110–$180 per person for a half-day trip that includes snorkel gear, lunch or heavy snacks, and open-bar drinks. Full-day versions with more sailing time run $200–$280.
Pick the morning departures—they get the calmer morning seas and better light for snorkeling. Skip the ones that advertise “sunset with unlimited rum” if you actually want to remember the trip; they tend to get loud fast. Bring reef-safe sunscreen, a waterproof phone case, and a light jacket for the ride back when the wind picks up.
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