Help With Failing Memory and Cave Name

[mudman]

I visited a cave up north a fair few years ago. Quite a well known cave where the entrance is in a rock outcrop in a river bed. The river is very prone to flooding and can seal off the entrance very quickly. The cave is very sizable inside.
Try as I might, I can't remember the name of the cave or the river.
Can anyone help me out to refresh my fuming memory?

TIA

 

[cap n chris]

Out Sleets Beck Pot?

 

[shotlighter]

Out Sleets Beck?
Second thoughts, Ibbeth Peril might be a better match to your description.

 

[Fulk]

I'd go with Ibbeth Peril in the bed of the R. Dee in Dentdale.

 

[cavemanmike]

When you say up north where about roughly. Sounds like quite a few places. Ogof hesp Alyn for example

 

[mudman]

Ibbeth Peril, that's the one.  ; :kiss2:  :bow:
Many thanks, that's been really bugging me for some reason.
(Sorry Caveman Mike, I should have said Northern England).

 

[paul]

I would have thought asking in "The Dales" section would have implied it was Northern England rather than North Wales...

 

[cavemanmike]

I would have thought asking in "The Dales" section would have implied it was Northern England rather than North Wales...

sorry obviously not paying attention