Stillwater · Chalk · East Midlands / Lincolnshire, GB-ENG

Otby Trout Lake

Otby Trout Lake venue image

Six-acre stream-fed fly-only trout lake in the Lincolnshire Wolds near Walesby/Market Rasen, well stocked with rainbow and brown trout.

Fair · Rainbow
Daddy Long Legs · 10-12
Temporary closure · troutReported 27 Aug 2026

Closed for day tickets because of weed

Otby Farms closed the trout lake to day tickets from 27 August 2026 because of excess weed. The season normally runs 1 April to 31 October.

Otby Farms — trout lake fly fishing ↗

Temporary notices from official orders and recent fishery reports — they clear automatically once out of date. Always confirm locally before travelling.

Fairlive now
Reasonable autumn fishing likely at Otby Trout Lake
Useful ripple, fishable wave. Worth a session if the wind holds.
59% confidence

Otby Trout Lake is often best in spring through autumn.

What moved it
  • WindW 28 km/hModerate breeze · Gusts to 39 km/h
Today's fly
Daddy Long Legs
Daddy Long Legs10-12
Upstream dry, on top
Conditions on the water
Estimate
Wind
Moderate breeze · Gusts to 39 km/h
W 28 km/h
N
W
from the west
Wave60 cm wave
Water temp12.8°C
Air temp8°C
CloudBroken
Pressure1003 hPa
Rain · recent0.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

How to fish it · for Rainbow
When
Current conditions suit Otby Trout Lake well for autumn tactics.
Where
Start with Floating Fry (8-10) on a Fish as a single fly. 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 Floating Fry (8-10) on a Fish as a single fly. 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

A fry-imitating pattern stripped through the margins can save a blank in autumn.

Watch for

Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.

Bank

Bank fishing near inflows, dam walls, and weed beds. Move to find feeding fish.

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 guilds as a supporter.

Start free trial

14-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 trial

14-day free trial. Cancel anytime.

Through the year
0–3 scale · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
1
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
Silverhorns & LonghornsHatch
1
2
2
2
1

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Buzzer team todayfor the conditions now
Point
Black buzzer, orange thorax
In this water’s box: Black Buzzer
#10
How to fish it
Intermediate line · let the breeze drift the team, then hang it 15–30 s

Fly recommendations

Point fly shown — supporters see the whole team, sizes and why.

Start free trial

14-day free trial. Cancel anytime.

Ranked for today
Rainbow fly box
What's coming
Plan ahead
5-day outlook
Condition match
72%
Cloud100%
Wind30%
Temp100%

A good match for Otby Trout Lake — most conditions are close to what it fishes best in.

Other water nearby · 3
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

Six-acre stream-fed fly-only trout lake in the Lincolnshire Wolds near Walesby/Market Rasen, well stocked with rainbow and brown trout. Bank and boat fishing (boat hire ~£1.50/hour), day and season tickets, season April-October.

  • Fishery
  • Chalk
Why this score
  • Wind conditions (windy) are not ideal for this water.
  • Cloud cover (cloud) suits the fishery well.
  • Temperature (cool) is in the sweet spot for autumn fishing.
Directions
Seasons & zones
  • Trout 1 April → 31 October
Related guides
Casting instructors near here
Booking & contacts
Permits & access