Question Red Crab Migration , Xmas Island

Back in November , 2011 i was lucky enough to have to go to Xmas Island for work and as luck would have it the crab migration was on . The excitement started the first morning when a Robber Crab wandered into the hangar we were working in , tools down it's photo time . The following day we finished early so we hired scooters to zip around the island for a look , many roads were completely closed so we were limited to where we could go but we still saw millions of crabs . A once in a life time experience and perfect for me especially as i have seen the migration on so many documentaries .