Penllergaer woods is ace, the side south of the M4 behind the council offices directly off Jct 45, about 5 mins ride from Sinclair. Well was when we left the area 3 yrs ago , not entirely sure on the legality of some of the trails. But they are well and considerately used, I never had any issues.
Same side as Ambrose described as Cadle woods. (Cadle is the bottom end. The top, nearer the M4, is the old Penllergaer estate.) There is no ROW that I know of on this side. It’s heavily used by walkers, families, dog walkers etc, and the charity that is restoring the place is doing lots of hard work, so it would be nice to respect that. There used to be some nice singletrack along the stream, but there’s not really enough for a few hours. It’s got some nice scenery.
I rode through the woods adjoining the services on Sunday, the north side, on the cx bike. That sums it up. There’s muddy singletrack, probably more that I don’t know about, but nobody I know heads up there instead of Clyne or Kilvey.
Clyne has waymarked trails – probably 20-30 minutes drive from the M4. Very good and lots of riding.
Kilvey is steeper, looser, more techy. Not waymarked but not difficult to work out where the trails are. It’s my personal trail centre. 🙂
You could spend hours in either.
I really wouldn’t bother with Penllergaer unless you want a plod around. Head for Clyne or Kilvey and you really won’t be disappointed. You can even link them up, traffic free along the seafront, with a decent coffee and cake.
I’m free on Saturday and can show you around if you want.