Blue hole
Ralph's Cave
The second entrance of the Dan's Cave System on Abaco, known for the translucent formations of its 'Glass Factory'. It lies in the South Abaco Blue Holes Conservation Area and is dived only with an approved guide.
Ralph's Cave is an inland blue hole on Great Abaco that was joined underwater to Dan's Cave, so the two now form a single system. Divernet describes an area called the Glass Factory, where thin translucent formations glow when lit from behind, along with crystal pools, a flowstone cascade resembling a frozen waterfall and formations tinted pink or red by Saharan dust.
The cave also preserves remains from when it was dry, including a bat skeleton reported to have lain there for more than 10,000 years. Like Dan's Cave, it is one of the principal sites of the South Abaco Blue Holes Conservation Area and is visited only on guided dives.
The environment
Highly decorated inland cave with fragile translucent formations; fresh water over salt water as in other Abaco inland caves.
Other entrances to Dan's Cave System
Every fact on this page, with its source (5)
| Fact | Status | Source |
|---|---|---|
| Ralph's Cave was connected to Dan's Cave and the combined system is called Dan's Cave.Connection year: 2015 per the explorers' 2016 blog, 2018 per Divernet 2019. | Sources conflict | [2] [1] |
| Ralph's Cave contains the Glass Factory, with translucent formations, crystal pools, a frozen-waterfall-like flowstone and formations tinted by Saharan dust. | Reported | [1] |
| A bat skeleton in the cave has lain there for more than 10,000 years.Magazine account; no dating study cited. | Reported | [1] |
| Cave diving in the South Abaco Blue Holes Conservation Area, which includes Ralph's Cave, is regulated and supervised by an approved guide.2019 report. | Reported | [1] |
| Guide supervision is required for cave diving in the area.2019 report. | Reported | [1] |
Verified: stated by an official or primary source we opened. Reported: from a secondary source only. Sources conflict: the note gives both versions. May be out of date: the newest source we found is old.
Written in our own words from the sources above. Report a correction