Stillwater · Volcanic · British Columbia, CA

Pennask Lake

Pennask Lake venue image

Pennask is the wild high-plateau lake that gave BC its famous free-rising rainbow strain — remote, cold and prolific, with mayfly and sedge hatches that bring big numbers of willing fish to the surface.

Fair · Rainbow
Balanced Leech · 8-12
A respectable few hours, if you choose your moments
Good wave on — drift country. A useful wave. Work the productive shore.
49% confidence
limited data

Pennask Lake is often best in spring through autumn.

What moved it
  • WindNW 11 km/hLight breeze
Today's fly
Balanced Leech
Balanced Leech8-12
Proven pattern for this period
Conditions on the water
Estimate
Wind
Light breeze
NW 11 km/h
N
NW
from the north-west
Wave20 cm ripple
Water temp11.4°C
Air temp12°C
CloudBroken
Pressure1013 hPa
Rain · recent0.0 mm

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

Head to
Wind driftN wind
Southern end

A northerly has held for 6 hours at much the same temperature as the 11°C water. No thermal steer either way, but the drift still stacks food against the southern 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.

How to fish it · for Rainbow
When
After ice-off (June) through the summer hatches; high elevation shifts the season later.
Where
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
The plan
Plan A

Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.

Plan B

If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.

Watch for

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

Boat — drift

A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.

Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 2 as a supporter.

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Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
1
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Flying AntsHatch
1
2
1
Gray DrakeHatch
1
1
CallibaetisHatch
1
2
2
2
1

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

Ranked for today
Rainbow fly box
CH
Chironomid
12-16 · Pattern
Proven pattern for this period
Permits & access
Permit required — see local rules.
  • Managed wild fishery with gear/access rules
  • Verify current BC regs (Region 8).
What's coming
Plan ahead
5-day outlook
Condition match
91%
Cloud70%
Wind100%
Temp100%

Conditions are ideal for Pennask Lake — wind, cloud and temperature all line up.

Fishing better nearby · 5
Coldwater River
55 km
81
Rainbow trout
Corbett Lake
37 km
Rainbow trout
Peterhope Lake
38 km
Rainbow trout
Lundbom Lake
39 km
Rainbow trout
Stump Lake
47 km
Rainbow trout
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

Pennask is the wild high-plateau lake that gave BC its famous free-rising rainbow strain — remote, cold and prolific, with mayfly and sedge hatches that bring big numbers of willing fish to the surface. It's a dry-fly stillwater at heart, with classic chironomid and leech fishing too. A bucket-list interior lake with a real sense of wilderness.

Under the surface

Pennask is a legendary high-plateau wild-rainbow lake west of Kelowna — the source of the famous Pennask strain of fast, free-rising rainbows used to stock waters across the province. Remote and high, it's a wild fishery known for prolific mayfly and sedge hatches and for trout that come willingly to the dry. A storied, fly-only-spirited destination lake.

Wading: Remote high lake, cold water, weather; boat/float tube fishery

  • Lake
  • Volcanic
  • Stillwater
  • Shoal
Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
  • Temperature (cool) is in the sweet spot for autumn fishing.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 June → 31 October
Related guides
Scotland Playbookloch & river fishingThermal Layers & Troutreading depth and temperatureEuro Nymphingsubsurface methods
Casting instructors near here
Booking & contacts