640-meter underwater cave, Japan's largest, found in Okinawa

640-meter underwater cave, Japan's largest, found in Okinawa

NAHA, Japan - An Okinawa diver says he has found a mammoth underwater stalactite cave, believed to be the biggest discovered so far in Japan, near the Manzamo resort in Onna, Okinawa Prefecture. The cave consists of a labyrinth of passageways about 640 meters in length, 150 meters longer than another Okinawa underwater cave, the 490-meter-long Hidenchigama cave off Kume Island. Photo was provided by Marine Dome, a diving shop run by he diver, Toshiaki Hirobe. (Kyodo)

Mattoni Waterfall, Trail, Kyselka Spa, tourist, ice stalactite

Mattoni Waterfall, Trail, Kyselka Spa, tourist, ice stalactite

Tourists visit Mattoni Waterfall covered by ice and snow at Mattoni Trail in Kyselka Spa, Czech Republic, January 17, 2021. (CTK Photo/Slavomir Kubes)

Mattoni Waterfall, Trail, Kyselka Spa, tourist, ice stalactite

Mattoni Waterfall, Trail, Kyselka Spa, tourist, ice stalactite

Tourists visit Mattoni Waterfall covered by ice and snow at Mattoni Trail in Kyselka Spa, Czech Republic, January 17, 2021. (CTK Photo/Slavomir Kubes)

Mattoni Waterfall, Trail, Kyselka Spa, tourist, ice stalactite

Mattoni Waterfall, Trail, Kyselka Spa, tourist, ice stalactite

Tourists visit Mattoni Waterfall covered by ice and snow at Mattoni Trail in Kyselka Spa, Czech Republic, January 17, 2021. (CTK Photo/Slavomir Kubes)

Mattoni Waterfall, Trail, Kyselka Spa, tourist, ice stalactite

Mattoni Waterfall, Trail, Kyselka Spa, tourist, ice stalactite

Tourists visit Mattoni Waterfall covered by ice and snow at Mattoni Trail in Kyselka Spa, Czech Republic, January 17, 2021. (CTK Photo/Slavomir Kubes)

Mattoni Waterfall, Trail, Kyselka Spa, tourist, ice stalactite

Mattoni Waterfall, Trail, Kyselka Spa, tourist, ice stalactite

Tourists visit Mattoni Waterfall covered by ice and snow at Mattoni Trail in Kyselka Spa, Czech Republic, January 17, 2021. (CTK Photo/Slavomir Kubes)