Nanumanga Fire Caves
Undersea caves, approximately 37 – 46 meters under sea level. The cave has dark patches on the roof and blackened fragments of coral on its floor, suggesting that people lived here long before the coming of Polynesians – more than 8000 years ago. This find contradicts the current assumptions of the sea-level changes.
Moqua Caves and Moqua Well
Cave where is Moqua Well – an underground lake (0.2 ha) – an important source of freshwater.
Savusavu Hot Springs
Hot springs located at the seaside, some springs are seen only at low tide. The temperature of springs – up to 90° C. In earlier times these springs were used by locals to boil their food. In the 1870ies for two months these springs turned into geysers, up to 12 – 18 m high.
Le Bone de Leproserie
A magnificent sinkhole that starts with some 50 m deep well and then continues with a 40 m deep lake. The entrance is only 25 m wide but the lake at its base is 160 m wide. Contains 350,000 m³ of freshwater.
Trou de Bone
Impressive, 40 m deep sinkhole with a lake at its bottom. The roots of banyan trees are hanging down the cliff and reach the water.
Fontaine-de-Vaucluse (Vaucluse Spring)
Very powerful spring at the foot of 230 m high cliff. Average discharge – 22,000 l/s, at snow melts – 110,000 l/s – thus it is one of the most powerful springs in the world. Dived up to 308 m depth. Source of Sorgue river.
Monturaqui Crater
One of the most impressive impact craters in South America, created by a meteorite some 660,000 years ago. 350 – 370 m wide, up to 34 m deep.
Impact craters
Wondermondo 🢖 Categories of wonders 🢖 Geological wonders 🢖 Impact craters Category Impact craters Described impact craters What is included in this category? Category includes outstanding impact craters – detectable scars on the surface of Earth left by a body coming from outer space. Category includes also meteorites – natural objects from the outer space. Bombardment from the space There are […]
Grande Cascade de Gavarnie (Gavarnie Falls)
422 meters high, impressive falls. Its highest single drop is 281 meters. It is located in the impressive setting of an enormous glacial cirque.
Khoun Xe Cave (Xe Ban Fai Cave)
Giant and unique cave, 13.6 km long. Upstream entrance is a giant sinkhole. The cave contains the largest known rimstone pools (gour pools) in the world – up to 60 m wide. Xe Bang Fai river flows through the cave for a 7 km long stretch and is one of the most powerful cave rivers in the world. Width of this underground river – 56 – 100 m. The ceiling of the cave is up to 120 m high, width is up to 200 m. The cave contains the largest known cave pearls in the world – 32 cm in diameter and even larger weird formations called Alien Eggs. Stalagmites over 20 m tall. More than 130 species of fish live in caves, some several meters long. Giant, very fast cave spiders including the giant huntsman spider.
