I glance at my guide, Brian Kakuk—one of the world's foremost cave divers. He appears unfazed ... structure of the inland blue holes—deep, dark, sheltered, with little tidal flow—specialized ...

Every year, the new species “migrates to a cave pond that floods during the rainy season for breeding purposes, despite the pond often being heavily polluted by effluent from nearby sugar ...

Krubera Cave in the republic of Georgia is currently the deepest known cave, at 7,208 feet. But Dark Star, with so many areas still to survey, is a prime candidate to take over the title.

Minecraft players were quite excited when a new biome called the deep dark was added to the blocky world. However, finding one is not an easy task as it spawns at deeper levels and there is no way ...