gua niah - sinkhole in roof of natural cave - niah caves (borneo)

gua niah - sinkhole in roof of natural cave - niah caves (borneo), backlight, caving, gua niah, natural cave, niah caves, sinkhole, spelunking gua niah - sinkhole in roof of natural cave - niah caves (borneo), backlight, caving, gua niah, natural cave, niah caves, sinkhole, spelunking

gua niah - sinkhole in roof of natural cave - niah caves (borneo)

Sunlight entering through a large sinkhole opening in the roof of a natural cave in the Niah National Park (Borneo).­

This is in the Great Cave, which is very large with huge chambers, up to 75m high, and a network of tunnels covering 10 hectares.­

backlight
caving
gua niah
natural cave
niah caves
sinkhole
spelunking
August 8, 2011