Wasdale X is a long distance triathlon in the Lake District. Think Ironman, but with mountains.
It's a 3.8km (2.4 mile) swim in Lake Windermere which Ellie G is taking on.
Then Fiona is up for a 180km (112 mile) bike, taking in the toughest climbs the Lake District has to offer with a truly giganic 3,700m (12,000ft) of climbing. It's epic.
Then it's Egg's turn to run a fell marathon, with 1,450m (4,923ft) of elevation gain including topping out on England's highest mountain, Scafell Pike.
The race starts at 04:30 and we have until half past midnight to finish! If anything, you should consider sponsoring us just purely to get up that early, let alone doing the crazy race.
The race entry is paid for by us so all proceeds go directly to the charity. Training has begun and we'll keep you updated!