There is a ride run by Pembs Bridleways group on 20th Sept 6 and 10 mile route at Llys Y Fran Reservoir. Contact Zandra Thomas on WD.Thomas1atbtopenworld.com
I was thinking of making this a 2 day event if I can get corralling and B+B or camping locally as there is a route round Stackpole that I would also like to do which could be done on the Saturday if anyone wants to join me.
Email/PM me and let me know if you are interested and I will let you know what I plan.