A 490-hectare reservoir in the Mendip foothills with a justified reputation for exceptional wild brown trout — some of the biggest in England. The limestone geology produces rich feeding and prolific hatches: buzzer, mayfly (late May–June), caenis, sedge, and terrestrials all feature strongly. Boat and bank fishing; Herriott's Bridge, Villice Bay, and Stratford Bay are classic marks. The wild browns are the prize — fish of 5 lb+ are taken regularly, with doubles a genuine possibility. Managed by Bristol Water; day tickets, boats, and season permits from Woodford Lodge.
Rules at a glance
- Day tickets
- Fly only
Reasonable late spring fishing likely at Chew Valley Lake
Good wave on — drift country. A useful wave. Work the productive shore.
The mayfly is on at Chew Valley Lake. The ripple should help fish move and feed more confidently.
62% confidence in this read
This is peak season for the venue, though today's conditions aren't quite ideal. Worth fishing — the timing is right even if the weather isn't perfect.
Live now
Conditions on the water
Trends shown where the gauge supports them
Wind
W 18 km/h
Gentle breeze
Wave
40 cm chop
Water temp
—
No reading
Air temp
10°C
Cloud
Broken
Pressure
—
Rain · 24h
0.0 mm
No rain
Some readings unavailable — check directly before fishing.
How to fish · for rainbow trout
The brief
When · where · method · kit
How to fish it · for rainbow trout
When
Buzzers from April; mayfly late May into June where the cover allows; daphnia mid-summer; back-end on lures October into November before the close.
Where
Stockton Lodge area, Heron's Green Bay, and the open water boat marks. Weed beds are significant on Chew — fish on and around them.
Method
Floater with buzzers under indicator in spring; midge-tip and team of three through summer dressed to suggest sedges and damsels.
Kit
10 ft #7 boat rod; floating, intermediate and fast-intermediate lines; 6 to 8 lb fluoro. Drogue and a long-handled net.
Today's tactical plan
The plan
Plan A · Plan B · what to watch · bank or boat
The plan
Plan A
Start with Blob (8-10) on a fast strip on floating line or static on sinking. 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. In the ripple, a bushy searching dry (Hopper, Shipman's, Elk Hair Caddis) outperforms flush emergers — it stays visible and holds the surface tension.
Plan B
If the dun pattern is ignored, switch to an emerger or spent spinner before reaching for anything heavier.
Watch for
Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.
Either bank or boat
Good ripple suits both bank and boat. Bank: work inflows, dam walls, and points. Boat: broadside drift covering wind lanes.
Hatches & runs
What's on, when
Twelve months at a glance
Through the year
0–3 scale · May highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
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
Daphnia SwarmHatch
2
3
3
3
2
Lake OliveHatch
2
3
3
3
3
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Today's fly · curated pack
Top pattern + the box
6 patterns from this venue's curated pack
Evidence
Why today scores what it does
The factors driving today's verdict
Why this score
- Mayfly is in its seasonal window, boosting the chance of targeted feeding.
Detail · next 12h
Precipitation
The reading most likely to move tomorrow's verdict
About this water · Lough note · 4 min read
Chew Valley Lake · profile
Who this water suits
Strengths · watch-outs · best for
Best for
- Travelling reservoir
- Competition
- Boat
About this water
Chew Valley Lake, on the water
Field guide · contributor-editedChew Valley Lake · about
What this water is
Background · character · contributors
About this water
A 490-hectare reservoir in the Mendip foothills with a justified reputation for exceptional wild brown trout — some of the biggest in England. The limestone geology produces rich feeding and prolific hatches: buzzer, mayfly (late May–June), caenis, sedge, and terrestrials all feature strongly. Boat and bank fishing; Herriott's Bridge, Villice Bay, and Stratford Bay are classic marks. The wild browns are the prize — fish of 5 lb+ are taken regularly, with doubles a genuine possibility. Managed by Bristol Water; day tickets, boats, and season permits from Woodford Lodge.
- Reservoir
- Limestone
Chew Valley Lake · directions
How to get to the water
Directions
Chew Valley Lake · zones
Where the rules change
Seasons · zones · per-species rules
Seasons & zones
- Trout1 April → 30 September
Chew Valley Lake · sources
Useful links
External · open in a new tab
Booking & contacts
Chew Valley Lake
Google Places
A 490-hectare reservoir in the Mendip foothills with a justified reputation for exceptional wild brown trout — some of the biggest in England.
Species
Reasonable late spring fishing likely at Chew Valley Lake
Good wave on — drift country. A useful wave. Work the productive shore.
The mayfly is on at Chew Valley Lake. The ripple should help fish move and feed more confidently.
62% confidence in this read
This is peak season for the venue, though today's conditions aren't quite ideal. Worth fishing — the timing is right even if the weather isn't perfect.
Conditions
Wind
W 18 km/h
Gentle breeze
Wave
40 cm chop
Water temp
—
No reading
Air temp
10°C
Cloud
Broken
Pressure
—
Rain · 24h
0.0 mm
No rain
Some readings unavailable — check directly before fishing.
Condition match
65%
Cloud70%
Wind65%
Temp60%
A reasonable day here, though temperature isn't quite in the sweet spot.
How to fish it · for rainbow trout
When
Buzzers from April; mayfly late May into June where the cover allows; daphnia mid-summer; back-end on lures October into November before the close.
Where
Stockton Lodge area, Heron's Green Bay, and the open water boat marks. Weed beds are significant on Chew — fish on and around them.
Method
Floater with buzzers under indicator in spring; midge-tip and team of three through summer dressed to suggest sedges and damsels.
Kit
10 ft #7 boat rod; floating, intermediate and fast-intermediate lines; 6 to 8 lb fluoro. Drogue and a long-handled net.
The plan
Plan A
Start with Blob (8-10) on a fast strip on floating line or static on sinking. 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. In the ripple, a bushy searching dry (Hopper, Shipman's, Elk Hair Caddis) outperforms flush emergers — it stays visible and holds the surface tension.
Plan B
If the dun pattern is ignored, switch to an emerger or spent spinner before reaching for anything heavier.
Watch for
Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.
Either bank or boat
Good ripple suits both bank and boat. Bank: work inflows, dam walls, and points. Boat: broadside drift covering wind lanes.
Why this score
- Mayfly is in its seasonal window, boosting the chance of targeted feeding.
Through the year
0–3 scale · May highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
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
Daphnia SwarmHatch
2
3
3
3
2
Lake OliveHatch
2
3
3
3
3
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Gallery · 1
Terrain map
Directions
About this water
A 490-hectare reservoir in the Mendip foothills with a justified reputation for exceptional wild brown trout — some of the biggest in England. The limestone geology produces rich feeding and prolific hatches: buzzer, mayfly (late May–June), caenis, sedge, and terrestrials all feature strongly. Boat and bank fishing; Herriott's Bridge, Villice Bay, and Stratford Bay are classic marks. The wild browns are the prize — fish of 5 lb+ are taken regularly, with doubles a genuine possibility. Managed by Bristol Water; day tickets, boats, and season permits from Woodford Lodge.
- Reservoir
- Limestone
Seasons & zones
- Trout1 April → 30 September
About this water · Lough note · 4 min read
A 490-hectare reservoir in the Mendip foothills with a justified reputation for exceptional wild brown trout — some of the biggest in England. The limestone geology produces rich feeding and prolific hatches: buzzer, mayfly (late May–June), caenis, sedge, and terrestrials all feature strongly. Boat and bank fishing; Herriott's Bridge, Villice Bay, and Stratford Bay are classic marks. The wild browns are the prize — fish of 5 lb+ are taken regularly, with doubles a genuine possibility. Managed by Bristol Water; day tickets, boats, and season permits from Woodford Lodge.
Other water nearby · 5
Booking & contacts