Went for a nice walk, lovely and quiet even on Good Friday

there is parking by the war memorial in Bwlch gwyn. It is on the corner, about 250m from the pub that you pass on the left coming from Wrexham

nant y ffrith waterfall

if you look on Google maps, you can navigate to the waterfall and caves.

I don’t personally recommend it, you have to go over a fence or past a no entry sign. Dodgy with kids or on your own