10 most beautiful natural holes in the world

These are natural pits with beautiful landscapes and a desirable destination for explorers.

1. Dean's Blue

Located off Clarence, Bahamas, Dean's Blue is the deepest blue sea on the planet, with a depth of 202m. The pit is named after the local landlord. Dean's Blue is located in a small bay and is one of the most famous places in the world with scuba divers. At the Vertical Blue diving competition held here in April 2008, 25 national records and 5 world records were broken. Subsequently, William Trubridge, a diving athlete from New Zealand, also broke the world free diving record at a depth of 84m without using diving fins.

2. Bimmah

This hole is naturally formed when the unstable ground collapses. Here, there is a 500m long underwater tunnel leading to the sea, creating a mix of fresh water and seawater in the hole. This is a recessive hole, but the "extreme" tide puts diver at risk. Bimmah is located about 6km from Dibab, Oman.

3. Great Blue

Great Blue is an undersea pit, about 70km from Belize. It is located near the center of coral island Lighthouse. This hole is 124m deep, has a round mouth with a diameter of 300m. Great Blue is part of the Belize Barrier coral sanctuary, an area recognized by UNESCO as a natural heritage of mankind. Great Blue is a dream destination for divers around the world. Here, they have the opportunity to meet rare fish such as grouper, Caribbean coral shark or blackhead shark.

4. Ik Kil

Ik Kil is a well-known pit outside Tin Chu city, Yucatán, Mexico. It is located in the northern center of the Yucatán Peninsula and is part of Ik Kil Archaeological Park. This place is open for people to swim and bus tours. The pit has a depth of 40m, the mouth diameter is 60m. Visitors can go to the pit through a staircase clinging to the rocky slope. In addition, Ik Kil is also home to a rare species of catfish.

5. Red Hole

Red Hole is a limestone water reservoir near Imotski, Croatia. This pit is famous for numerous caves and cliffs 241m high compared to the lake level. The depth of exploration of this hole is 530m. Red Lake can hold about 25-30 million cubic meters, making it the third largest pit in the world. Under the pit there are underground waterways so keep the water level stable.

6. Zacatón

Zacatón is a hot water pit located in Aldama city, north of Tamaulipas state, Mexico. This is the deepest water sink in the world with a depth of 335m. NASA once measured the 319m deep water reservoir, and the water-free part was 6m. Zacatón is also the only pit in 5 holes in Rancho La Azufrosa with significant water flow. The name of the pit originates from the floating floating grassy islands and moves over the water in the hole.

7. Morning Glory

This is one of the most beautiful holes in the world. It is located in Yellowstone Park in Wyoming, USA. The depth of this hole is 4 meters. The name "Morning Glory" was placed in 1880 because it was like a poppy. The special color of this hole is caused by a bacterium that lives in the water. However, Morning Glory was in danger of losing its characteristic color, when a road was opened nearby and made many enthusiastic tourists throw coins into holes, threatening the existence of bacteria.

8. Neversink Pit

Neversink Pit is a limestone pit in Alabama, USA. This is one of the holes that attracts photographers around the world, because of the stunning landscape with green moss on rock formations and majestic waterfalls. This hole has a depth of 50m, mouth 12m wide and 30m wide at the bottom. Neversink Pit is also a haven for bats and some rare and endangered ferns.

9. Giant's Kettle

This is an amazing destination for travelers in Rovaniemi, Finland. This hole has a giant kettle with a diameter of 5.7 - 8m and a height of 15.4m. At the bottom, the pit is divided into 2 parts and contains only a little water.

10. Balaa

Balaa Hole is located in northern Lebanon. It has a depth of approximately 250m. The most amazing thing is that the waterfall flows through many layers of stone.