- Fly only
Start with Cormorant (10-12) — on the bob / top dropper. If that does not produce, switch depth or speed before changing the pattern entirely.
A fry-imitating pattern stripped through the margins can save a blank in autumn.
Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.
Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.
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 4 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
No online booking — the only confirmed access route is a day ticket bought in person, in the nearest village.
A reasonable day here, though wind isn't quite in the sweet spot.

Nant-y-moch reservoir looking North-East from Bryn Gwyn forest Terrain map
- Wind conditions (windy) are not ideal for this water.
- Cloud cover (cloud) suits the fishery well.
- Buzzer is in its seasonal window, boosting the chance of targeted feeding.
- Reservoirs of this kind fish well at this time of year.
Nant y Moch Reservoir

Start with Cormorant (10-12) — on the bob / top dropper. If that does not produce, switch depth or speed before changing the pattern entirely.
A fry-imitating pattern stripped through the margins can save a blank in autumn.
Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.
Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.
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 4 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
No online booking — the only confirmed access route is a day ticket bought in person, in the nearest village.
A reasonable day here, though wind isn't quite in the sweet spot.

Nant-y-moch reservoir looking North-East from Bryn Gwyn forest Terrain map
- Wind conditions (windy) are not ideal for this water.
- Cloud cover (cloud) suits the fishery well.
- Buzzer is in its seasonal window, boosting the chance of targeted feeding.
- Reservoirs of this kind fish well at this time of year.