Supertriathlon paralympic event The Superheroseries Triathlon event is a major paralympic event which allows people with physical and learning disabilities to experience a team triathlon with support. The Grange's team are called the Power Grangers and together with staff, relatives and supporters they will be challenging themselves to the hilt to complete the team event. Celebrities will be in attendance and there's fun, food and music. Dorney Lake was the venue for the 2012 Olympics and is set in beautiful grounds with walks and plenty of parking. Booking for this event has now closed.