From diving to birdwatching, there is a plethora of experiences to take part in at Christmas Island National Park. The red crab migration is one popular experience for tourists.

Christmas Island might sound like a made-up name, but it's actually a far-away place in Australia that has an incredible red crab migration each year. Here's why you should consider going.

However, you don’t need to wait for the migration to see crabs: Christmas Island is awash in them, with more than 20 species occupying different niches. Red crabs are particularly plentiful.