Bank fishing and limited boat access available. LRPE permit required.
- Lake
- Slate
A southeasterly has held for 6 hours at much the same temperature as the 3°C water. No thermal steer either way, but the drift still stacks food against the north-western end — the bank it is blowing into — so start there. This reads the upper water, though — a bottom bait at range feels it far less than a floater or a fish in the margins. Treat it as a tiebreaker between good swims rather than an override — features and angling pressure usually count for more.
Start with Diawl Bach (12–14) — on the bob / top dropper — slow figure-of-eight retrieve. 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.
Slow down everything. A booby on a fast-sinking line, left static, can pick up deep fish.
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 prey shown — see all 3 as a supporter.
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Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
A practical Walloon stillwater pack for Ardennes reservoirs and stocked lakes where stocking history, bank access and wind matter more than classic river drift-fishing. Small lures, buzzers, nymphs and simple streamers belong here.
A good match for Lake Robertville — most conditions are close to what it fishes best in.

Bank fishing and limited boat access available. LRPE permit required.
WFD classification · BERW06_AM02L

Reservoir on the Warche near Malmedy with stocked trout in a scenic Ardennes setting.
A southeasterly has held for 6 hours at much the same temperature as the 3°C water. No thermal steer either way, but the drift still stacks food against the north-western end — the bank it is blowing into — so start there. This reads the upper water, though — a bottom bait at range feels it far less than a floater or a fish in the margins. Treat it as a tiebreaker between good swims rather than an override — features and angling pressure usually count for more.
Start with Diawl Bach (12–14) — on the bob / top dropper — slow figure-of-eight retrieve. 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.
Slow down everything. A booby on a fast-sinking line, left static, can pick up deep fish.
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 prey shown — see all 3 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
A practical Walloon stillwater pack for Ardennes reservoirs and stocked lakes where stocking history, bank access and wind matter more than classic river drift-fishing. Small lures, buzzers, nymphs and simple streamers belong here.
A good match for Lake Robertville — most conditions are close to what it fishes best in.

Bank fishing and limited boat access available. LRPE permit required.
WFD classification · BERW06_AM02L
Lake Robertville is a lake in Wallonia / East Belgium. Its recorded elevation is about 528 m above sea level and the catchment geology is slate. Our data lists brown trout and rainbow trout here. The trout season is recorded as running from 3rd Saturday of March to 30 September. Best window recorded for anglers: 3rd Saturday of March – 30 September (Wallonia); spring and early autumn usually best for stocked trout. Core methods listed: Nymph; Dry fly; Wet fly / soft hackle. Nearby waters in our listings include Warche at 7.0 km, Holzwarche at 7.0 km and Lake Bütgenbach at 7.0 km.