This month we're celebrating our long-distance trails in the Pyrenees. Get 20% off selected titles using code PYRENEES20 at checkout. Find out more here. Offer ends 31st May.

John Parker

A keen cyclist, then fell-walker and mountaineer, John Parker spent all his working life as a cartographic surveyor with the Ordnance Survey, including an extended spell in Cumbria, to which he returned after early retirement during 1992. In late 1996 he began to survey the lakes for his own interest as a canoeist.

The result is a set of detailed charts that record the lakes down to rocks, islets, reeds and shingle, as well as the routes running closest to the shorelines