Source to Sea Trail 2025

The Source to Sea Trail is an adventure by gravel bike or mountain bike into the heart of Yorkshire. It is a circular route, 720kms (450 miles) long with 9,250 meters of climbing, that connects the network of old trails in the folds of the hills and on the moors where 10 of Yorkshires finest river rise.

Along the way the trail connects bridleways across the Yorkshire Dales, North York Moors, Peak District and the South Pennines. The trail is 75% ‘off-road’ with farmers double track across millstone grit, singletrack across limestone and greenways on canal towpaths and reclaimed railway lines.

It is the only bikepacking trail in the world that traces the watershed – the ridge of high ground – of a single large scale basin where rivers such as the Aire, Calder, Derwent, Esk, Nidd, Swale, Wharf and Ure have their source and follows their flow to the sea.

The inaugural event in 2024 attracted 35 riders from the UK, France and USA. The event in 2025 has an event hub and start line in the Calder Valley and within 5km riders are climbing up an oak clad clough above Hebden Bridge and heading north to Swaledale, east to Whitby and then south to York before crossing the Humber on the worlds longest cycle path on a suspension bridge over the muddy waters where 25 rivers flow into the body of the North Sea.