There has always been mystery and intrigue surrounding sinkholes, and these are some of the best, creepiest and most dangerous ones in the world. Sinkholes are created by different processes, such as weathering, liquefaction or the dissolution of particles in water. Beyond the scientific, these ten shockingly dangerous sinkholes from around the world have attracted much tourism and speculation and have also been a big part of some of the worlds most intense records ever set. Although considered dangerous at times, these sinkholes will forever be a part of history.
5. Xiaozhai Tiankeng
5. Xiaozhai Tiankeng
Considered to be the worlds largest sinkhole, at 660 meters deep and 530 meters wide, this mammoth hole in China is considered a treasured Chinese tourist attraction. After thousands of steps were carved into the steep walls to allow tourists to traverse down into it, many found that the best season to visit was during the rainy season, due to the beautiful waterfalls created by the sheer sides.
4. Red Lake
4. Red Lake
This lake was created in Croatia when the roof of a cave collapsed inwards to reveal the underneath lake. What makes this lake truly remarkable is that many believe that this lake is connected via underground waterways to other rivers and lakes in the area.
3. Bimmah
3. Bimmah
This sinkhole in Oman is roughly 30 meters deep and contains crystal clear water at the bottom. Many tourists have come here for a leisurely swim, and as such a concrete stairway was built into the sinkhole to allow visitors easier access to the waters.
2. Sima Humboldt
2. Sima Humboldt
Found in Venezuela, this sinkhole is roughly 320 meters deep, and consists of almost completely vertical walls. Due to the weathering process that created the sinkhole, there was found to be water at the bottom of this sinkhole, and as such, more forest grew at its base. This sinkhole houses a forest, whilst being inside a forest.
1. Great Blue Hole
1. Great Blue Hole
Similar to Dean’s Blue Hole, this sinkhole is also found underwater in Belize and was discovered by the famous explorer, Jacques Cousteau. Although it was not the deepest underwater sinkhole at 125 meters deep, it was described as some of the best scuba diving to be found around the world.