Blue Hole

The Great Blue Hole, Belize

The Great Blue Hole became famous in 1971 when Jacques Cousteau brought the Calypso here and declared it one of the top dive sites in the world. What he filmed was primarily the interior stalactites at depth: limestone formations that grew in air 15,000 years ago when sea levels were lower, then were submerged as the ocean rose. The hole is a flooded cave system, not a volcanic feature. It measures about 300 metres across and 125 metres deep, and the circular shape makes it strikingly photogenic from the air even if you never get in the water.

The honest thing to say about the Blue Hole as a dive: it is spectacular as a concept and somewhat disappointing as a dive experience for many people. The walls are relatively bare below 30 metres; the famous stalactites begin around 40-45 metres and are reached briefly at the depth limit of a recreational dive. Most life concentrates at the shallow rim around 5-15 metres. If you’re diving primarily for fish and reef, the surrounding Lighthouse Reef Atoll and Half Moon Caye have more consistent marine life than the Blue Hole itself. The hole’s appeal is more geological and symbolic than ecological.

This is a defensible opinion, and plenty of divers argue with it. You should still go.

Getting There

The Blue Hole sits 70 kilometres offshore at Lighthouse Reef Atoll. Most dive trips depart from San Pedro on Ambergris Caye or Caye Caulker between 6:00-7:00am, reaching the hole after about 2.5-3 hours of ocean crossing. Full-day trips typically include three dives: the Blue Hole plus two additional sites on Lighthouse Reef. Cost: approximately $250-395 USD per person for a three-tank trip in 2026, plus a $40 park fee. Book 3-4 months ahead for peak season (December through April). Calm sea conditions are required; trips cancel when weather is poor.

Requirements: Advanced Open Water certification and a minimum of logged dives. The depth and limited visibility at the bottom makes this unsuitable for newly certified divers. Go with an operator you trust.

Aerial Option

If you don’t dive, flying over the Blue Hole is a legitimately different and worthwhile experience. The circular form and the colour gradient from turquoise rim to cobalt centre is fully visible from the air and impossible to see from sea level. Tropic Air and Maya Island Air both run aerial tours from San Pedro, Caye Caulker, and Belize City. Flights run approximately 1 hour and cost $215-292 USD per person. The flight path usually includes a pass over the atoll’s surrounding reef, which adds context.

Staying on Ambergris Caye

San Pedro is the obvious base: hotels at every price point, good dive operators, direct boat access to Lighthouse Reef tours. For budget travel, Caye Caulker (a 30-minute water taxi from San Pedro) is significantly cheaper and has a more relaxed atmosphere. The island was once a backpacker favourite and still functions that way if you want it to.

Ramon’s Village Resort in San Pedro is a well-established dive resort with comfortable cabanas and competent dive operations from around $150-200 USD a night. Ambergris Caye Hotel is the cheaper option at $80-120 USD and perfectly functional.

On Caye Caulker, guesthouses run $40-80 USD a night and the pace of life is slower. “Go slow” is the island motto and is taken seriously.

Eating

San Pedro has the most developed food scene on the cayes: seafood restaurants along the front street serving fresh snapper, barracuda, and the Belizean national dish of rice and beans with stewed chicken or fish. Wild Mangos is a frequently cited breakfast and brunch spot for good reason. For fresh ceviche and a cold Belikin beer, the open-air spots along the water are straightforward and good.

The lobster season in Belize runs July through March; outside of that window, lobster on menus is frozen or imported and not worth ordering.

Practical Notes

The dry season (November through May) offers calmer seas and better visibility. Hurricane season runs June through October, and while the Blue Hole is accessible in good weather within that window, booking flexibility matters.

Belize uses the Belize dollar (BZD), fixed at 2:1 to the USD; USD is accepted almost everywhere. Card payment works at established hotels and restaurants; cash is useful on Caye Caulker and for smaller vendors.

The journey out to Lighthouse Reef is open ocean. If you’re susceptible to seasickness, take medication before the early morning departure and don’t eat a heavy breakfast.