The Teesdale Triathlon is one of the most popular events on the North-East calendar. It's based at Teesdale Leisure Centre and consists of a 400m pool swim followed by an 18-mile, undulating cycle ride through scenic Teesdale and a 3-mile, off-road run. Early entry is recommended as the event regularly sells out ahead of the official closing date. The event is ideal for beginners and experienced triathletes alike.