The view out from Gatekirk Cave (in Chapel-le-Dale) is very fine indeed. There's a pool so you get a nice reflection, specially if you have someone standing in the right spot.
Might be worth taking wellies to walk in along the right hand side (looking in); I think you can also crawl along a ledge and still stay dry without wellies. But why struggle?
It's a resurgence cave incidentally.
Best avoid Chapel-le-Dale on Saturday afternoon as the 3 Peaks Fell Race will be going through and the main road might be briefly busy in the Hill Inn area. Best bet would be to park close to Chapel-le-Dale church and walk up via Philpin and Haws Gill Wheel. If you do use the church car park, consider making a modest donation in lieu of parking charges. (They prefer it if you don't use the church car park on Sundays, for obvious reasons.)
The church itself (St. Leonard's) is worth a visit (lovely spot - see if you can find Christopher Long's grave in the form of a Celtic cross close to the left wall of the churchyard, just before going into the main church door). Also worth a visit whilst you're there is Hurtle Pot, a great water-filled pit immediately behind the church; home of the legendary boggart (but he'll probably not be gurgling this weekend unless we get more rain than currently forecast). It's a window into a very long underwater cave system.