THE PEN LLYN ULTRA MARATHON 2017: AN ULTRA CHALLENGE THE RACE: 75 miles (121KM) in 24 hours, that is the challenge posed by the second Pen Ll?n Ultra Marathon. The race starts and finishes at Plas Heli in Pwllheli, with 7 checkpoints / aid stations along the scenic route. THE DATE: Saturday July 29th, 2017 at 5am. THE LOCATION: Tucked away beyond Snowdonia’s craggiest peaks with the Irish Sea on one side and Cardigan Bay on the other, the Ll?n Peninsula has a distinctive, unspoilt character that’s all its own. Its sunny southern coast draws walkers, wakeboarders and dinghy-sailors There are several islands dotted around the peninsula, with the famous ancient pilgrimage site of Bardsey Island, at its tip and can be seen in all its beauty during the race. The islands and coastline of Ll?n are a haven for wildlife and an area of outstanding natural beauty. Seals and dolphins are common sites around the peninsula. All of this makes a perfect back drop for the Pen Ll?n Ultra.