In reply to bouldery bits:
One of my favourites is Whiteworks, jump over the river Strane then follow the wall heading towards Swincombe. You are running alongside the flat...lovely....wet...Foxtor Mire!
As the Swincombe valley forms and steepens drop and cross the river using one of the islands (paddling only, not deep unless really rainy). On the far side climb about 20m to find the obvious track of the dry wheel Emma Leat. Head back west briefly then head direct for Fox Tor, going via the famous Childes Tomb. Enjoy the stunning views at the Tor, then use the obvious track to head back to Fox Tor.
Had enough? Head to car/Princetown...want a bit more, go due west briefly over moorland where you will find the Devonport Leat coming out of the tunnel which goes under Nuns Cross. Follow the good path next to the leat as far as you like getting back to Princetown by joining the South Hessary path wherever suits! Stunning quiet run with loads of interest!