Nine nights, three ports — and the morning a sea turtle glided past us in Bonaire beat them all. On January 13th we took the ship’s Bonaire catamaran snorkeling excursion off Grandeur of the Seas. It turned into the highlight of the entire southern Caribbean cruise. Here’s exactly how the day runs, what surprised us, and how to decide whether it belongs on your port day after 55.

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The short version: Bonaire’s protected reefs make even a standard ship excursion spectacular. The catamaran format is genuinely friendly to travelers over 55 — crew-handled logistics, a real swim platform and ladder, guides in the water. Bring sun protection and your own mask if you have one, pace yourself between stops, follow the turtle rules, and you may come home with the best photos of the cruise.

Why Bonaire punches above its weight

Bonaire has protected its surrounding waters for decades, and you can see the results the moment you look down: healthy reef and clarity unlike anywhere else we’ve sailed. The leeward side, where cruise ships dock at Kralendijk, stays calm. The setting does half the excursion’s work before the crew does anything.

How the Bonaire catamaran snorkeling excursion actually runs

We booked through the ship — our standing rule, because if a ship excursion runs late, the ship waits. But the catamaran format adds something I didn’t fully appreciate until we were aboard: after 55, you’re buying logistics, not just transportation. The crew gets you boarded, briefs you properly, stays in the water with you, and there’s a real swim platform with a ladder — you’re never leaping off a gunwale or hauling yourself over a tube. You do the swimming; they do everything else. The sail out was calm enough for coffee, and the morning light on that water explains why our photo album is literally named “Epic morning.”

The turtle

Not on the itinerary. Not promised anywhere. At one of the snorkel stops, a sea turtle simply glided through — and this is where the guides’ briefing matters. The rules: don’t chase, don’t touch, don’t corner. Float still and let the ocean decide how close you get. We floated; it came. For a full minute, a sea turtle and two people in their fifties shared the same patch of Caribbean, and I forgot about the camera in my hand. Honest report on the rest: that morning Bonaire gave us far more coral than fish — the reef itself is the show, healthy and everywhere — which made the turtle’s entrance feel even more like a gift. That minute is the answer to “why get off the ship.”

Four things I’d tell a friend beforehand

Bring your own mask if you have one. The excursion provides gear, but we brought our own masks anyway — we do on every trip. A mask that fits your face beats any rental, even a free one. Ours: the Aegend dry snorkel and Speedo swim goggles.

Sun protection is non-negotiable. Catamarans have shade, but the water reflects everything. A Hurley sun shirt over the swimsuit is the easy answer, plus Blue Lizard mineral sunscreen (kinder to the reef you came to see) and my Columbia hat for deck time.

Pace yourself between stops. If one snorkel session fills your tank, sitting the next one out on the deck of a catamaran in Bonaire is not exactly losing. Nobody hands out medals for the second swim.

Listen to the briefing. The guides know this reef and this current. They’re the reason a morning like ours stays a great story instead of becoming a different kind of story.

After: Kralendijk

The town at the pier is small, flat, and friendly — an easy waterfront stroll before reboarding. We came back aboard rested instead of wrecked, which is my whole measure of a good port day after 55 — and the Bonaire catamaran snorkeling excursion passed it easily: great story, no crash.

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Your turn: what’s the best thing that ever crashed one of your excursions? Tell me in the comments — animal stories especially welcome.