Running fanatics, assemble – Ultra-Trail Australia is here. The 100km trail running event (yes, you read that correctly) takes place over four days in May in the stunning world heritage-listed Blue Mountains National Park. Featuring an elevation gain of 4,400 metres and a lot of stairs, this one certainly isn't for the faint-hearted.
Those not quite up to the 100km event can take part in the 50km race, which follows the second half of the 100-kilometre route through the Kedumba Valley, or the 22-kilometre event which starts at Queen Victoria Hospital and ends at Scenic World.
If you're into something short but sweet, try your hand at the Scenic World UTA951, where you'll only have to run for 1.2km, but up the (in)famous Furber Steps. It's all good if your legs feel like jelly at the end – your entry fee includes a ride down the Scenic Railway, the steepest incline railway in the world.