Stillwater · Granite · Savoie / Alps (Tarentaise, high-altitude lake)

Plan d'Aval

Plan d'Aval — Plan d'Amont et Plan d'Aval

High-altitude alpine lake in the Hautes-Alpes, accessible by hiking into pristine mountain terrain.

Marginal · Trout
Small Perdigón · 16-20
A patient day, if you fancy it
Glassy and bright — hard work without a breeze. A flat lough is a quiet lough — wait for the breeze.
40% confidence
limited data

Plan d'Aval is often best in spring through autumn.

What moved it
  • WindSW 5 km/hCalm
Today's fly
Small Perdigón
Small Perdigón16-20
Euro-nymph
Conditions on the water
Live gauge
Wind
Calm
SW 5 km/h
N
SW
from the south-west
WaveFlat calm
Water temp
Air temp21°C
CloudClear
Pressure1026 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for Trout
When
June–September
Where
With limited drift, anchor or fish static from sheltered positions. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point. Calm evenings are perfect for individual dry fly work — target rising fish. Keep a sedge-style dry or emerger on a short leader for the evening rise.
The plan
Plan A

With limited drift, anchor or fish static from sheltered positions. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point. Calm evenings are perfect for individual dry fly work — target rising fish. Keep a sedge-style dry or emerger on a short leader for the evening rise.

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

Damsel Nymph may strengthen through the middle of the day as conditions warm.

Bank

Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.

Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey

Hatch predictions

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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
1
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Daddy Long LegsHatch
2
3
2
Lake OliveHatch
1
2
2
2
2
2
1
Silverhorns & LonghornsHatch
1
2
2
2
1

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

Ranked for today
Trout fly box

French nymph-first water. Fast current, technical presentation, weighted nymphs and emergers, with dry flies when fish rise.

Permits & access
Permit required — see local rules.
  • AAPPMA permits.
What's coming
Plan ahead
5-day outlook
Condition match
52%
Cloud25%
Wind65%
Temp60%

A reasonable day here, though cloud isn't quite in the sweet spot.

Other water nearby · 5
Gallery · 2
  1. Plan d'Aval — Plan d'Amont et Plan d'Aval
    Plan d'Amont et Plan d'Aval
  2. Terrain map of the venue
    Terrain map
About this water

High-altitude alpine lake in the Hautes-Alpes, accessible by hiking into pristine mountain terrain. Wild trout in cold, clear water. Shore fishing only — backcountry commitment required. Spectacular views, low pressure, cautious fish. Short season (June–September with snowmelt). Permits required; check local prefecture for regulations.

  • Lake
  • Granite
Water quality (WFD)
  • EcologyGood
  • ChemicalUnknown

WFD classification · FRDR11910

Why this score
  • Damsel Nymph is in its seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout 2nd Saturday of March3rd Sunday of September
Related guides
Booking & contacts