- Fly only
Start with Cat's Whisker (8-12) — on the point. Rainbows respond to more active retrieves — try short strips between pauses. If that does not produce, switch depth or speed before changing the pattern entirely.
If the main plan stalls, drop to a size 14–16 midge — switch to a washing-line or suspender rig and change drift line before you change food group.
Sedge should come on through the afternoon as the water warms.
Good ripple suits both bank and boat. Bank: work inflows, dam walls, and points. Boat: broadside drift covering wind lanes.
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
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Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 5 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Run and booked directly by Welsh Water — the most straightforwardly bookable of the Tier 3 stillwaters.
A reasonable day here, though cloud isn't quite in the sweet spot.

Angling above Llys-y-frân dam Terrain map
- Buzzer is in its seasonal window, boosting the chance of targeted feeding.
- Reservoirs of this kind fish well at this time of year.
Llys y Fran Reservoir

Start with Cat's Whisker (8-12) — on the point. Rainbows respond to more active retrieves — try short strips between pauses. If that does not produce, switch depth or speed before changing the pattern entirely.
If the main plan stalls, drop to a size 14–16 midge — switch to a washing-line or suspender rig and change drift line before you change food group.
Sedge should come on through the afternoon as the water warms.
Good ripple suits both bank and boat. Bank: work inflows, dam walls, and points. Boat: broadside drift covering wind lanes.
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 5 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Run and booked directly by Welsh Water — the most straightforwardly bookable of the Tier 3 stillwaters.
A reasonable day here, though cloud isn't quite in the sweet spot.

Angling above Llys-y-frân dam Terrain map
- Buzzer is in its seasonal window, boosting the chance of targeted feeding.
- Reservoirs of this kind fish well at this time of year.