Tens of millions of red land crabs live on Christmas Island. They are the Island's keystone species, because they play a vital role recycling nutrients and shaping and maintaining the structure of the rainforest. At the beginning of the wet season (usually in October/November), most adult Red Crabs suddenly begin their spectacular migration from the forest to the coast, to breed and release eggs into the sea. Breeding is usually synchronised island wide. The rains provide moist overcast conditions for crabs to make their long and difficult journey to the sea. The timing of the migration breeding sequence is also linked to the phases of the moon, so that eggs may be released by the female Red Crabs into the sea precisely at the turn of the high tide during the last quarter of the moon. It is thought that this occurs at this time because there is the least difference between high and low tides. The sea level at the base of the cliffs and on the beaches, where the females release their eggs, at this time varies the least for a longer period, and it is therefore safer for the females approaching the water's edge to release their eggs. Sometimes there are earlier and later migrations of smaller numbers of crabs, but all migrations retain this same lunar rhythm. The main migration commences on the plateau and can last up to 18 days. Masses of crabs gather into broad "streams" as they move toward the coast, climbing down high inland cliff faces, and over or around all obstacles in their way, following routes used year after year for both downward and return migrations. Movement peaks in the early morning and late afternoons when it is cooler and there is more shade. If caught in open areas, in unshaded heat, the crabs soon lose vital body moisture and die. The crabs will migrate to the coast, where the males will dig mating burrows and they will mate. After mating, the males will commence their return migration. The females will brood their eggs for 12-13 days before emerging from the burrows to commence spawning. The females will commence their return migration immediately after spawning. The eggs hatch into free swimming larvae immediately after they are dropped into the sea. The larvae grow through several stages in the ocean for over four weeks before emerging from the sea to become tiny crabs.

If you are an American football fan, then you simply can't miss this place. The College Football Hall of Fame is an interactive museum dedicated to college football, its players, and coaches.

If you are a fan of stand-up comedy, this is the place for you! Some of the best comedians such as Eddie Murphy, Jay Leno, and Jerry Seinfeld have already performed here. Apart from regular shows and events, they also offer drinks and casual eats. Plan ahead as reservations are required.

The Sonnenborgh Observatory is housed in a historical building that traces back to a 17th-century laboratory on a 16th-century bulwark. Its lush greenery and water around it present it as an impressive sight even from a distance. Visitors are welcomed by friendly staff who provide a tablet with information, and engaging assignments that allow them to conduct their own research. The top of the observatory is accessible for everyone who wants to check out the telescope domes and gaze at the stars. Don't miss this chance to learn all about this unique building, the constellations and the weather in their exhibitions, tours or lectures.