Derwen Blue
The Derwen blue trail climbs a steeper bank before taking in a longer, faster descent that will have you pumping and whooping all the way to the valley bottom. The blue route is also a stepping-stone to the steeper and more technical red Gorlech route.
How to get there:
Byrgwm is located on the B4310, two miles north-east of Brechfa village. Follow the A40 between Llandeilo and Carmarthen and take the B4310 towards Brechfa village.
How to get there:
Derwen Blue can be started from Byrgwm Picnic Site in Brechfa. Abergorlech, Llandovery, Llandeilo, Brechfa, Llanybydder, Pumsaint, Llansawel, and Rhydcymerau are the nearest towns or villages.
Byrgwm is located on the B4310, two miles north-east of Brechfa village. Follow the A40 between Llandeilo and Carmarthen and take the B4310 towards Brechfa village.
OS Grid Reference: SN585340