Used a Derbyshire Wayfarer today.
Set out with a vague intention to just walk down to station, get a train to Belper and do a circular walk there, thinking I could plan a route while on train.
Changed mind while on train....just decided to get off train at Duffield and walk back to Derby railway station...probably around half a dozen miles "as crow flies". Last time I walked area basically used Derwent Valley heritage route all way. But knew there were some footpaths on other side of river, and decided to start out on those.
Didn't have a detailed map of area with me (the one I'd taken was a mini map centred on Belper) but had a GPS with 1 to 50,000 map, and basically knew if I kept going south I'd end up back in centre of Derby.
That worked pretty well...walked about 3 to 4 miles before on a good path running south before that "stopped"...and I had to find a road bridge to get across the Derwent and pick up main Derwent Heritage footpath back to railway station.
Enjoyed it. Probably going to Leeds tomorrow, just for a stroll on Leeds/ Liverpool canal.