Keld is where two streams merge to form the Swale and there is a pretty waterfall (force is an old Norse word for it - compare "fors" in Swedish today), which at the time of our visit was not half as impressive as it can be as the summer of 2006 was extremely dry all over Europe. Still, it made a pretty sight and I would love to follow the rivers to their sources by hiking in the gorgeous fells here.
England's highest positioned pub is well known in the north of England. Tan Hill it is called and these days it is so famous that they've applied for rights to marry people and when granted this, has had several wedding parties. Tan Hill is really in the middle of nowhere out on its own, three miles north east of Keld up a narrow country lane. These days it has all mod cons but only a few years ago it had no running water or anything and life up here in winter was just a matter of survival. I am still hoping to get here one day but this time we hadn't planned for the trek there and back and still catching a bus back to Richmond once back in Keld...
Dales & District runs a bus through Swaledale which is from Richmond to Keld so this is where the bus turns. Just note that not all of them run all the way to Keld, as some terminate in Gunnerside so read your timetable carefully if you want to catch a bus back.
Favorite thing: Catch a bus to Keld, hop off and walk back to Gunnerside. It takes a day for someone like you and me and you will love it. Just make sure you have the right (walked in) footwear, rain clothes, water and proper map of the area. Oh, and the camera of course.