Great Blue Hole Belize: Dive, Snorkel, Fly Over & Visit Guide

The Great Blue Hole is a vast underwater sinkhole off the coast of Belize near the center of Lighthouse Reef, a remote coral atoll about two hours by boat from the Ambergris Caye. Perfectly circular in shape, it has a depth of 410 feet and measures 1,000 feet across. Seen from space, the heart of the hole is a deep sapphire blue contrasted against brilliant aquamarine waters. Believed to be the largest of its kind in the world, this rare geological formation is part of the Belize Barrier Reef Reserve System, a UNESCO World Heritage Site.

A bucket list destination thanks to renowned oceanographer Jacque Cousteau, he declared the Blue Hole to be one of the planet’s top 10 dive sites after exploring it in 1971. It’s best known for its caverns with up to 40-foot-long limestone stalactites, formed over thousands of years, creating a stunning visual. While marveling at their beauty, Caribbean reef sharks can often be spotted along with the occasional black tip, bull, and nurse sharks. 

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A Centuries-Old Destination

Of course, the Belize Blue Hole was birthed long before Cousteau explored it. The opening to a system of caves and passageways in an undersea mountain, it was formed when the sea level was much lower. Over time, the elements eroded the exposed terrain and water filled the hole, covering the area at the end of the Ice Age when sea levels rose again. Evidence of its creation can be seen in the limestone shelf that surrounds it. 

Best Ways to Experience the Great Blue Hole Belize: Dive, Snorkel, or Fly Over

While the Great Blue Hole is best known as a world-class dive site, it’s also possible to snorkel around the vibrant coral rim teeming with marine life or get a bird’s-eye view by taking an aerial tour. 

Diving

If you’re a seasoned diver, diving will allow you to fully experience the Blue Hole. Watch for everything from sea turtles to neon gobies and parrot fish before reaching a depth of 100 feet where the impressive cave system and magnificent stalactites deep within become visible. Silhouettes of circling reef sharks often appear out of the darkness too.

Snorkeling

Snorkelers can also experience the Great Blue Hole area, especially on full-day boat trips that combine the Blue Hole with nearby reef stops. While divers descend into the depths of the Blue Hole, snorkelers can enjoy the surrounding reef, clear Caribbean water, and additional stops around Lighthouse Reef such as Half Moon Caye and the Aquarium. These trips are especially good for mixed groups where some guests want to dive, and others prefer to snorkel.

Full-day boat trips to the Great Blue Hole also include time at Half Moon Caye, one of the most beautiful island stops in Belize. Lunch at Half Moon Caye is often a highlight of the day, giving travelers time to enjoy the beach, scenery, and peaceful natural setting before continuing on to another reef stop such as the Aquarium.

Flyover

A Blue Hole Flyover is available from multiple outfitters, departing from San Pedro on Ambergris Caye, Caye Caulker, or Sir Barry Bowen Municipal Airport in Belize City. You can choose from a plane or helicopter flight, both of which offer a breathtaking perspective of the Blue Hole and surrounding area from above, circling several times while providing outstanding photo ops. 

Tropic Air, Maya Island Air, and Astrum Helicopters are the three main companies offering flyovers. If you’re trying to decide between a helicopter and a small plane, helicopters tend to provide a smoother ride and fly slowly, hovering above the Great Blue Hole for the very best photo ops. That said, if cost is a concern choose the small plane – you’ll still enjoy amazing views.

Great Blue Hole Flyover vs Boat Trip

A Great Blue Hole flyover is usually the best choice if you want the iconic aerial view and only have limited time. Most scenic flights are about one hour, making them a good option for travelers who want to see the Blue Hole without spending a full day offshore.

A boat trip is usually a longer adventure, often around 10 hours. It is best for travelers who want to experience the water, visit Lighthouse Reef, snorkel or dive, and enjoy stops such as Half Moon Caye. The boat trip is not just transportation — it is a full-day experience through some of the most beautiful waters in Belize.

Where to Stay

Ambergris Caye

The best base for visiting the Great Blue Hole in Belize is Ambergris Caye. It’s easily accessible from this island while offering an excellent mix of amenities and island life that will keep you entertained throughout your stay. Most tours depart from San Pedro, the main town, where there are many dive shops offering day trips to the Blue Hole for snorkeling or diving. We highly recommend Amigos Del Mar, a well-established family-owned business here since 1984.

Flyover tours via helicopter or small plane, as noted, also depart from Ambergris Caye. Plus, you can also explore nearby reefs, take advantage of the array of eateries serving fresh seafood, Caribbean, and international fare, and enjoy the nightlife. A good range of accommodation is available too, from budget-friendly to luxury resorts.

Caye Caulker

If you’re looking for a more laid-back, backpacker-type vibe for simply soaking up the sun and the sea, Caye Caulker is an alternative. It’s slightly closer to the Great Blue Hole than Ambergris Caye but there are fewer tour options. You will find several dive shops with the prices roughly the same from either island. 

Best Time to Visit the Great Blue Hole Belize

Belize is a fantastic destination to visit anytime, but if experiencing the Great Blue Hole is a top priority, you’ll want to plan your trip around the best time to dive, snorkel, or take a flyover. You’ll have a good chance for ideal weather in the Cayes between June and August, which typically see the best conditions for visiting the Blue Hole, barring any hurricanes. This is part of the rainy season on the mainland which spans from June through November, but islands like Ambergris Caye typically don’t get much rain until September, continuing through December and into early January.

In its long history, the Great Blue Hole has attracted many famous explorers. You’ve already learned that it was Jacque Cousteau who brought the Calypso, his renowned research ship here in 1971 to chart its depth. But did you know that evolutionist/biologist Charles Darwin visited the Great Blue Hole in 1836 on his round-the-world trip? He described the Belize Barrier Reef as the western Caribbean’s “richest and most remarkable” of coral reefs. In 2018, Sir Richard Branson and his team of explorers which included Fabien Cousteau, Jacques’ grandson, broadcast a live expedition of the Blue Hole on the Discovery Channel. 

Now, you too can follow in their footsteps by using our guide to exploring the Great Blue Hole for an especially unforgettable escape to Belize! 

Frequently Asked Questions on The Great Blue Hole in Belize

Is the Great Blue Hole Belize worth visiting?
Yes, the Great Blue Hole is worth visiting if you are interested in one of Belize’s most famous natural wonders. A flyover is best for seeing its iconic circular shape, while a boat trip is best for travelers who want a full-day reef adventure.

Can you snorkel the Great Blue Hole Belize?
Yes, snorkelers can join many full-day Blue Hole boat trips. While divers explore the deeper parts of the Blue Hole, snorkelers usually enjoy the surrounding reef and nearby stops around Lighthouse Reef.

Is it better to fly over or boat to the Great Blue Hole?
A flyover is best for the famous aerial view and usually takes about one hour. A boat trip is best for travelers who want a full-day experience with diving, snorkeling, Half Moon Caye, and other reef stops.

How long is the boat trip to the Great Blue Hole from Ambergris Caye?
A Great Blue Hole boat trip from Ambergris Caye is usually a full-day excursion, often around 10 hours depending on the tour, sea conditions, and included stops.Where do Great Blue Hole tours leave from?
Many tours leave from San Pedro on Ambergris Caye, which is one of the best bases for visiting the Great Blue Hole. The current blog already mentions that most tours depart from San Pedro. (Sandy Point Resorts)