gua niah - birds nest collectors climbing poles in natural cave (borneo)

gua niah - birds nest collectors climbing poles in natural cave (borneo), birds-nest, caving, gua niah, natural cave, niah caves, pole, spelunking, wooden gua niah - birds nest collectors climbing poles in natural cave (borneo), birds-nest, caving, gua niah, natural cave, niah caves, pole, spelunking, wooden

gua niah - birds nest collectors climbing poles in natural cave (borneo)

Wooden pole hanging from the roof of a natural cave (Borneo).­

Those poles are (or were) used by birds-nest collectors to climb and harvest the birds-nests.­ The poles are formed of several segments , connected together by wood plugs.­

birds-nest
caving
gua niah
natural cave
niah caves
pole
spelunking
wooden
August 8, 2011