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The Great Blue Hole as seen from space
On-shore caves of similar formation, as large collapsed sinkholes, are well known in Belize.
[3]This site was made famous by
Jacques-Yves Cousteau who declared it one of the top ten
scuba diving sites in the world. In 1971, he brought his ship, the
Calypso, to the hole to chart its depths.
[4] Investigations by this expedition confirmed the hole's origin as typical
karst limestone formations, formed before rises in sea level in at least four stages, leaving ledges at depths of 21, 49 and 91 meters (69, 161 and 299 ft).
Stalactites were retrieved from submerged caves, confirming their previous formation above sea level. Some of these stalactites were also off-vertical by 10°-13° in a consistent orientation, thus indicating that there had also been some past geological shift and tilting of the underlying plateau, followed by a long period in the current plane.
This is a popular spot amongst recreational scuba divers, who are lured by the opportunity to dive in crystal clear water and meet several species of fish, including giant
groupers,
nurse sharks and several types of reef sharks such as the
Caribbean reef shark and the
Blacktip shark. Other species of sharks, like the
bull shark and
hammerheads, have been reported there, but are not regular sightings. Usually, dive trips to the Great Blue Hole are full-day trips, which include one dive in the Blue Hole and two further dives in nearby reefs.
"A journey of a thousand miles must begin with a single step." -- Lao Tzu
Copyright © Demetrios the Traveler

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Pura Tanah Lot (Tanah Lot Temple) is Hindu Temple.
Located about 20 km from Denpasar, the temple sits on a huge offshore rock which has been shaped continuously over the years by the ocean tide.
Tanah Lot means "Land in the Middle of the Sea" (in Balinese language) is a famous rock formation off the Indonesian island of Bali.
Note: It is a fantastic place to view beautiful dramatic sunsets. Every day at dusk, tourists throng the area to witness the magnificent silhouette of the temple against the glowing horizon.
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