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Great Blue Hole 1-day itinerary

Belize

Day 1: Great Blue Hole Day Trip

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Morning

Departure & Journey to the Blue Hole

Your Blue Hole day trip begins with a 5:30–6am departure from Caye Caulker or San Pedro on Ambergris Caye. The boat ride takes approximately 2.5 hours across the open Caribbean, passing over the turquoise shallows of the Belize Barrier Reef before reaching Lighthouse Reef atoll — one of only four atolls in the Western Hemisphere. The Great Blue Hole appears as a dark circle in the reef, its deep cobalt blue contrasting dramatically with the surrounding pale turquoise waters. From the surface, the perfect circular shape (318 metres across) is mesmerising. For certified divers, the descent begins — dropping to 40 metres past massive stalactites formed during the last ice age when this was a dry limestone cave. Reef sharks patrol below in the crystal-clear water.

Tip: The Blue Hole dive requires Advanced Open Water certification (or equivalent) — the maximum depth is 40 metres. Book your trip at least 2 days in advance as boats have limited capacity. Take motion sickness medication if prone — the open water crossing can be rough.
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Afternoon

Half Moon Caye & Wall Diving

After the Blue Hole dive or snorkel, the boat continues to Half Moon Caye — a protected island within the Lighthouse Reef system and home to a colony of 4,000 red-footed boobies nesting in the trees. Walk the short trail through the bird sanctuary where these striking white birds with bright red feet perch at eye level, completely unafraid of visitors. The second dive of the day is at Half Moon Caye Wall — widely considered one of the top wall dives in the world. The reef drops vertically from 10 metres to over 1,000 metres into the abyss. Eagle rays, groupers, barracuda, and the occasional hammerhead shark cruise along the wall. Snorkellers can explore the vibrant shallow reef above.

Tip: Bring a waterproof camera — the booby colony and wall dive are incredibly photogenic. Half Moon Caye has composting toilets and a small beach for lunch. Snorkellers get equally spectacular reef at the surface.
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Evening

Return to Caye Caulker & Sunset

The boat returns to Caye Caulker or San Pedro by late afternoon after a full day on the water. The third stop on most trips is Long Caye for a final snorkel or dive over a pristine patch reef teeming with tropical fish, nurse sharks, and Southern stingrays. Back on Caye Caulker, head straight to the Split — a narrow channel dividing the island where locals and travelers gather to swim, drink rum punch, and watch the sunset over the reef. Celebrate your Blue Hole achievement with a lobster dinner at a beachfront restaurant ($15–25 BZD for a whole grilled lobster in season) and a Belikin beer. The island motto is "Go Slow" — tonight, you will genuinely feel it.

Tip: The Split is the social hub of Caye Caulker — free to swim, cheap drinks at the bar, and the best sunset view on the island. Lobster season runs June 15 to February 14 — outside this period, conch is the local seafood of choice.

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See the full Great Blue Hole guide