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Anahulu Cave

Plizio editorial teamUpdated: Jun 2026Data Sources

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Anahulu Cave is a natural limestone formation located on the eastern coast of Tongatapu near the village of Haveluliku. This underground cave system is renowned for its impressive collection of stalactites and stalagmites that have formed over thousands of years. One of its most distinct features is a large freshwater pool situated within the cave, which is a popular spot for swimming. The cave descends to a depth where the temperature remains constant, providing a cool environment compared to the tropical surface. Stone steps and a wooden platform have been installed to facilitate access for visitors exploring the interior. Archaeological evidence suggests the area surrounding the cave has been significant to local communities for generations. It remains one of the few places on the island where visitors can experience a natural underground swimming environment.

Location: Tonga
Top sights: Matatahi Laulea · Matatahi 'Anahulu · Makatolo-'A-Maui
Nearby: Tatakamotonga (4 km)

Best time to visit & climate

The most pleasant time to visit is Jul–Sep.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	27	27	27	26	25	24	23	23	23	24	24	26
Rain mm	197	197	197	170	112	100	67	81	83	88	111	115

📋 Practical info

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Best season

The best season to visit Anahulu Cave is the dry season from May to October, when rainfall is lower and the natural freshwater pools are clearest. During the wet season from November to April, heavy downpours can make access difficult and reduce underwater visibility.

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Best time of day

An early morning visit is best to avoid crowds and enjoy the cool, clear water of the cave pools undisturbed. Late afternoon light filtering through cave openings can create beautiful effects, but this time is usually busier with other visitors.

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Etiquette

Please note that feeding animals inside the cave and removing rock samples or formations are strictly prohibited. Keep a respectful distance from other swimmers and avoid loud noises to preserve the natural atmosphere.

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What to bring

Bring swimwear and a waterproof towel, as the natural pools invite you for a swim. A torch is useful for exploring deeper cave sections, and non-slip shoes protect your feet on the wet limestone floor.

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Getting there

Anahulu Cave is located on the eastern coast of Tongatapu and is reachable by car from Nukuʻalofa in about 30 minutes. Follow the Hala Tāone Road towards Haveluliku and watch for signs to the cave entrance.

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What to expect

Be prepared that the cave is very popular especially on weekends and waiting times may occur. Water quality varies with tides and rainfall, so it pays to stay flexible for longer visits.

Geography

Coordinates

-21.21800, -175.10900

Facts

The cave is located approximately 25 kilometers from the capital city, Nuku'alofa.
The freshwater pool inside the cave reaches depths of up to 8 meters.
Natural limestone formations include stalactites that are several meters long.
The cave temperature typically remains steady around 20 to 22 degrees Celsius.
Anahulu Cave is situated just 50 meters from the shoreline of the Pacific Ocean.
The cave system extends several hundred meters into the limestone bedrock.

Explore nearby

Notable places around

Hufangalupe Natural Monument<1 km · SExplore →

Hufangalupe Natural Park2 km · SEExplore →

Lavengatonga2 km · NEExplore →

Tongatapu Terrace2 km · NWExplore →

Hufangalupe Natural Bridge3 km · SExplore →

Tatakamotonga Handicraft Hub3 km · SWExplore →

Haʻasini3 km · SEExplore →

Nakolo4 km · EExplore →

Route planner — Car & Motorhome

Where do you start? We build the route here, with stops and country notes along the way.

Start Destination Via (optional)

Overnight stops

Vehicle

Only stops with (optional): 💧 Water ♻️ Disposal 🔌 Power 🚻 Toilets 🚿 Shower

Sights in the town Anahulu Cave (6)

Matatahi Laulea

Sandy beach on the coast near Anahulu Cave. Calm water, suitable for swimming.

Matatahi 'Anahulu

Beach section directly in front of Anahulu Cave. Sand and shallow water.

Makatolo-'A-Maui

Archaeological site with remains of ancient settlements. Name refers to the Polynesian god Maui.

Falelotu faka-manatu 'Amanakilelei Tautu'a

Christian church near Anahulu Cave. Serves the local community.

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Koe Falelotu ko Matiu

Christian church, named after the apostle Matthew. Located near Anahulu Cave.

Matatahi Halaika

Sandy beach on the coast. Calm water, suitable for swimming.

Sights nearby

Frequently asked questions

Can you swim in Anahulu Cave?

Yes, there are natural freshwater pools inside the cave.

Do you need a guide for the cave?

It is possible without a guide, but caution is advised.

What is the water temperature?

The water is pleasantly cool, good for cooling off.

Is the cave easily accessible?

Yes, the entrance is easily accessible from the main road.

Should I bring flashlights?

Yes, it is very dark in the deeper areas.

Anahulu Cave: where is it located?

Anahulu Cave is located in Tonga.

Anahulu Cave: what is there to see?

Highlights include Matatahi Laulea, Matatahi 'Anahulu, Makatolo-'A-Maui.

Anahulu Cave: when is the best time to visit?

The most pleasant time to visit is Jul, Sep.

Anahulu Cave: why is it worth visiting?

Anahulu Cave is a natural limestone formation located on the eastern coast of Tongatapu near the village of Haveluliku.

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