- Ecology: Unknown
- Chemical: Unknown
Rules at a glance
- Free fishing
How to fish it · for Rainbow
When
March–November
Where
Start with Chironome (12-16) — on the bob / top dropper. 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.
The plan
Plan A
Start with Chironome (12-16) — on the bob / top dropper. 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.
Plan B
Fish early and late, try deeper during the heat of the day with a fast-sinking line.
Watch for
Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.
Bank
Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.
Sub-surface · on the nymphunder the surface
Hatch predictions
See the full sub-surface read with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey
Hatch predictions
Top prey shown — see all 2 with Pro.
Start free trial14-day free trial. Cancel anytime.
Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
2
1
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Reservoir BuzzerHatch
2
3
3
3
3
3
2
Lake OliveHatch
2
3
3
3
3
3
2
Silverhorns & LonghornsHatch
1
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Rainbow fly box
Permits & access
Permit required — see local rules.
- Private commercial fishery
- Status uncertain — the operator's original website (pisciculturedemereville.com) is dead and there's an unconfirmed report of a 2022 closure, though a newer site under the same phone/email shows active operation
- Confirm booking and current status directly with the venue.
What's coming
Plan ahead
5-day outlook
Condition match
55%
Cloud25%
Wind100%
Temp25%
A reasonable day here, though temperature isn't quite in the sweet spot.
Other water nearby · 1
Water quality (WFD)
Why this score
- Wind conditions (ripple) closely match what this water fishes best in.
- High temperatures may push fish deeper and reduce surface activity.
Directions
Seasons & zones
- Trout 1 March → 1 November
Related guides
Booking & contacts
Pisciculture de Méréville (Lavandières)
How to fish it · for Rainbow
When
March–November
Where
Start with Chironome (12-16) — on the bob / top dropper. 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.
The plan
Plan A
Start with Chironome (12-16) — on the bob / top dropper. 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.
Plan B
Fish early and late, try deeper during the heat of the day with a fast-sinking line.
Watch for
Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.
Bank
Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.
Sub-surface · on the nymphunder the surface
Hatch predictions
See the full sub-surface read with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey
Hatch predictions
Top prey shown — see all 2 with Pro.
Start free trial14-day free trial. Cancel anytime.
Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
2
1
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Reservoir BuzzerHatch
2
3
3
3
3
3
2
Lake OliveHatch
2
3
3
3
3
3
2
Silverhorns & LonghornsHatch
1
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Rainbow fly box
Permits & access
Permit required — see local rules.
- Private commercial fishery
- Status uncertain — the operator's original website (pisciculturedemereville.com) is dead and there's an unconfirmed report of a 2022 closure, though a newer site under the same phone/email shows active operation
- Confirm booking and current status directly with the venue.
What's coming
Plan ahead
5-day outlook
Condition match
55%
Cloud25%
Wind100%
Temp25%
A reasonable day here, though temperature isn't quite in the sweet spot.
Other water nearby · 1
Water quality (WFD)
- Ecology: Unknown
- Chemical: Unknown
Why this score
- Wind conditions (ripple) closely match what this water fishes best in.
- High temperatures may push fish deeper and reduce surface activity.
Directions
Seasons & zones
- Trout 1 March → 1 November
Related guides
Booking & contacts