Location of Christmas Island
Christmas Island rainforest 
Redcrab
Red crabs begin their march from the forest to the sea, where they will reproduce.
During the migration,the island's human inhabitants just have to adapt.
There are around 120 million crabs on the march.
The crabs navigate the same pathways year after year
For the islanders, encounters with crabs during the migration are just part of island life.
Most of the time we just work around the crabs and take them for granted
Red crabs are scavengers
The weary travellers dip in the ocean to replace body fluids andsalts.
After two weeks of arching, the first wave of crabs reaches the Ocean
Rangers rescue crabs from drowning whilst dipping off the cliffs around the island.
Aerial view of Christmas Island
Crabs pop up in the most unexpected places
A female crab lays eggs that immediately hatch on contact with the water.
Baby crabs navigate their way into the rainforest ...
