SMOO!

Since Jerra shot in-looking-out, I suppose out-looking-in makes the set complete?
Between the parked van and the steps down there was a side-branching path; to a bridge over a hole, down which vanished a small river.
"Deep"ish within Smoo cave you can see it as a waterfall 
(See extra, not brilliant, but does the trick?). Just slightly out of sight round a bend left in the main pic.
In season there are, apparently, guided trips deeper; which we hadn't the choice of today.
Next stop Ullapool.