Updated
Llyn y Fan Fach
Reservoir
Llyn y Fan Fach (Welsh meaning "little lake of the peak") is a lake of approximately 10 hectares (25 acres) on the northern margin of the Black Mountain in Carmarthenshire, South Wales and lying within the Brecon Beacons National Park. The lake lies at an altitude of approximately 1,660 feet (510 m), immediately to the north of the ridge of the Carmarthen Fans. It is the smaller of two lakes within this mountain massif: the slightly larger Llyn y Fan Fawr is about 2 miles (3.2 km) to the east.
Interactive map not available
Weather at Llyn y Fan Fach
Sponsored gear checklist
Pack smarter for Llyn y Fan Fach
Useful gear categories for this kind of water spot. These links open Amazon search results so you can compare current options.
As an Amazon Associate we earn from qualifying purchases.
Frequently asked questions
- Where is Llyn y Fan Fach?
- Llyn y Fan Fach is a reservoir in Wales.
- Can you swim at Llyn y Fan Fach?
- There is no fixed answer for Llyn y Fan Fach: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Llyn y Fan Fach in Wales. Check current water conditions before you go, and follow posted signs and local guidance.
Advertisement
Visitor Reviews
Be the first to share your experience here
Join our community to share your water adventures
Earn badges as you share your experiences!
No reviews yet — share what you know
Been here? A quick note helps the next visitor plan their day. Handy things to mention:
Best Times to Visit
- ›Check for boat launch facilities and fees
- ›Obtain required fishing licenses before arrival
- ›Be aware of lake-specific regulations and restrictions
- ›Monitor water quality reports before swimming
Location & Contact
Wales
</> Embed this location on your site
Paste this snippet into your website to show a live badge for Llyn y Fan Fach — free to use with the included credit link.