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

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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