Llwyn-on is the largest of the three Taff reservoirs at a hundred and fifty acres and the most accommodating — fly, spinner or worm all permitted, which makes it a favourite with local anglers and a good water to bring a beginner to. Stocked with rainbows and browns; the bag-limit permits run four or six fish. Bookable by day-ticket through the Fishing Passport. The Taff valley setting is broad and pastoral rather than dramatic, but the fish are honest and the access is straightforward.
- Reservoir
- Old red sandstone
