Stillwater · Granite · Aragón, ES

Pyrenean Ibones (high-mountain lakes)

The Ibones de Anayet, twin glacial lakes below Pico Anayet in the Aragonese Pyrenees.
Marginal · Trout
Grasshopper Pattern · 10-14
A patient day, if you fancy it
Good wave on — drift country. Slow going — pick your moments and do not force it.
44% confidence
limited data

Peak season here starts around September — worth planning ahead.

What moved it
  • WindW 13 km/hGentle breeze
Today's fly
Grasshopper Pattern
Grasshopper Pattern10-14
Proven pattern for this period
Conditions on the water
Estimate
Wind
Gentle breeze
W 13 km/h
N
W
from the west
Wave20 cm ripple
Water temp16.0°C
Air temp14°C
CloudClear
Pressure1020 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 Trout
When
July–September, with the core window set by late opening, altitude, and ice-off
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

Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.

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

Top nymph shown — see all 2 guilds with Pro.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 5 with Pro.

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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
1
Claret DunHatch
2
3
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Flying AntsHatch
1
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
Permits & access
Permit required — see local rules.
  • Aragón fishing licence required
  • High-altitude ibones often have later openings and water-specific conservation rules, so check the exact lake status before fishing.
What's coming
Plan ahead
5-day outlook
Condition match
64%
Cloud25%
Wind65%
Temp100%

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

Fishing better nearby · 5
Gallery · 2
  1. The Ibones de Anayet, twin glacial lakes below Pico Anayet in the Aragonese Pyrenees.
    Ibones de Anayet
  2. Terrain map of the venue
    Terrain map
Why this score
  • Temperature (cool) is in the sweet spot for summer fishing.
Directions
Seasons & zones
  • Trout 1 July30 September
Related guides
Booking & contacts