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St. Herman's Blue Hole

Plizio editorial teamUpdated: Jun 2026Data Sources

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St. Herman's Blue Hole is a natural limestone pool located in the heart of the national park of the same name in Belize. This hydrological phenomenon is a classic example of a cenote, formed by the collapse of an underground cave roof. The pool is part of the Sibun River system and is connected via subterranean passages to the nearby St. Herman's Cave. The sapphire-blue water reaches a maximum depth of approximately 8 meters and maintains a refreshing temperature year-round. The surrounding vegetation consists of dense, primary tropical rainforest, providing habitat for species like the keel-billed toucan and various hummingbirds. For the ancient Maya, this site held significant spiritual importance, as caves and cenotes were viewed as portals to the underworld, Xibalba. Today, the site's geology is subject to intensive research aimed at mapping the complex flow paths of underground water systems within Belize's karst landscape.

Location: Belize
Nearby: Big Falls (4 km)

Best time to visit & climate

The most pleasant time to visit is Jan–Mar.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	21	22	24	26	26	25	25	25	25	24	22	22
Rain mm	110	66	58	40	127	240	175	197	225	251	200	137

📋 Practical info

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Visiting

St. Herman's Blue Hole is a natural freshwater sinkhole open for swimming and snorkeling. Entry is through the small national park, which is accessible daily.

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Typical hours

The national park is typically open from sunrise to sunset. The best time to visit is early morning to avoid crowds.

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Photography

Photography is allowed throughout the park and at the blue hole. Underwater shots with a waterproof camera are highly recommended.

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Time needed

Plan about 1 to 2 hours for swimming, snorkeling, and enjoying the surroundings. If you also use the hiking trails, 2 to 3 hours is realistic.

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Combine with

Combine the visit with the nearby Jaguar Paw National Park. The Mayan ruins of Altun Ha are also a short drive away.

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Getting there

The blue hole is about 16 km from Belmopan, easily reachable by car or taxi. The road is mostly paved, but the last few kilometers are gravel.

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Insider tip

Bring your own snorkeling gear, as rental on site is limited. Insect repellent is essential, especially in the morning and evening.

Geography

Coordinates

17.19100, -88.84700

Facts

The pool has a surface diameter of approximately 30 meters (100 feet).
Water emerges from a cave on one side and disappears into a subterranean passage on the other.
The water temperature remains consistent at approximately 22-24°C (72-75°F).
The Blue Hole is situated immediately off the Hummingbird Highway, a scenic route in Belize.
Pottery shards used by the Maya for ceremonial offerings have been found nearby.
The site has been a recognized natural recreational area since the 1960s.