swap_horiz Lost John's Cave Alternatives

1

Great Blue Hole

Off Belize's coast, the Great Blue Hole is a marine sinkhole within Lighthouse Reef. Its near-circular opening marks a l...

Karst Marine Diving Limestone

8.69 Great

2

Lake Peigneur Sinkhole 1980

At Lake Peigneur in southwestern Louisiana, a drilling accident in 1980 connected the lake with an underground salt mine...

Accident 1980S Collapse Louisiana

8.69 Great

3

Guatemala City Sinkhole 2010

During 2010, a sudden ground collapse in Guatemala City produced a deep, roughly circular opening that swallowed a facto...

Urban 2010S Guatemala Collapse

8.60 Great

4

Darvaza Gas Crater (Door to Hell)

Known as the Door to Hell, the Darvaza Gas Crater is a gas-fed depression in Turkmenistan's Karakum Desert. Flames burni...

Desert Gas Turkmenistan Collapse Crater

8.56 Great

5

Blue Hole of Dahab

Just offshore near Dahab on Egypt's Red Sea coast, the Blue Hole forms a deep marine sinkhole surrounded by reef. Its de...

Marine Diving Egypt Red Sea

8.42 Great

6

Sarisarinama Sinkhole – Humboldt Pit (Sima Humboldt)

On the summit of Venezuela's Sarisarinama tepui, Sima Humboldt forms a vast depression with steep rock walls and vegetat...

Natural Large Venezuela Sandstone

8.42 Great

7

Guatemala City Sinkhole 2007

The 2007 Guatemala City ground collapse opened a deep chasm in an inhabited urban area, causing fatalities and substanti...

Urban 2000S Guatemala Collapse

8.42 Great

8

Red Lake (Crveno Jezero)

Red Lake (Crveno Jezero) is a deep sinkhole in Croatia formed by karst processes. Its notable depth, exceeding 245 meter...

Natural Karst Croatia Deep

8.19 Great

9

Boesmansgat (Bushman's Hole)

Boesmansgat is a significant sinkhole located in South Africa’s Northern Cape region. It's notable for its considerable...

South Africa Freshwater Deep Flooded Cave

8.02 Great

10

Cenote Saamal

Cenote Saamal is a large, open-air sinkhole located in Mexico's Yucatan Peninsula, situated within the Hacienda Selva Ma...

Natural Mexico Yucatan Cave

7.73 Good

11

Cenote Tajma Ha

Cenote Tajma Ha is an underwater cave system and sinkhole located in Quintana Roo on Mexico's Yucatán Peninsula. It is a...

Diving Mexico Cave Quintana Roo

7.59 Good

12

Pozzo del Merro

Pozzo del Merro is a water filled sinkhole in the Monti Cornicolani area northeast of Rome, Italy. Remotely operated und...

Natural Italy Freshwater Deep

7.04 Good

13

Vrtoglavica

Vrtoglavica is a deep cave shaft on the Kanin karst plateau in the Julian Alps of Slovenia. Its entrance pitch descends...

Slovenia Vertical Karst Deep

6.99 Fair

14

Ellison's Cave (Fantastic Pit)

Ellison's Cave is an extensive wild cave system in Pigeon Mountain, Walker County, Georgia, known for its exceptionally...

Vertical Cave Pit Cave Georgia USA

6.81 Fair

15

Cenote Calavera

Cenote Calavera is a sinkhole located near Tulum in Quintana Roo, Mexico, known for its three surface openings that visu...

Diving Mexico Tulum Cave

6.76 Fair

16

Harwood Hole

Harwood Hole, also spelled Harwoods Hole, is a vertical cave shaft in the marble and limestone karst near Takaka Hill on...

New Zealand Vertical Deep Pit Cave

6.53 Fair

17

Eldon Hole

Eldon Hole is a large natural pothole near Castleton in Derbyshire, England. The feature consists of a deep, open vertic...

England Historical Derbyshire Pothole

6.07 Fair

18

Alum Pot

Alum Pot is a large limestone shaft and cave feature near Selside in the Yorkshire Dales of England. The pothole forms a...

England Yorkshire Cave Pothole

5.80 Mediocre

19

Rowten Pot

Rowten Pot is a stream cave and vertical entrance in Kingsdale, in the Yorkshire Dales of North Yorkshire, England. It i...

Vertical England Yorkshire Cave

5.34 Mediocre

20

Sell Gill Holes

Sell Gill Holes are two adjacent pothole entrances in Ribblesdale, within the Yorkshire Dales of northern England. The l...

England Waterfall Yorkshire Cave

5.06 Mediocre