Video: Cavers Continue to Push Sweden’s Longest Underwater Cave

Follow along with cave divers as they explore Sweden’s Dolinsjö Cave as part of the 2016 Bjurälven Expedition.

This year they brought in a folding aluminum ladder in an effort to explore the roof inside “the rain hall”.

For all their efforts the longest underwater cave in the country was extended 353 meters (1158 feet) to a total length of 2,135 meters (1.3 miles).

[via Micke Tilja]