Limestone · Karst · Karlovačka

Mrežnica

Mrežnica venue image
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Beautiful karst river with tufa barriers and waterfalls.

Species

A proper day on the water

Low and clear — careful approach country. Stay small, stay accurate.

75% confidence in this read
Water temperature for brown trout
Cool — slow
9°C est.ideal 10–16°C
0°14°28°
Why this score · for brown trout
  • Temperature8228% weight
  • Flow6022% weight
  • Clarity9518% weight
  • Feeding Time4013% weight
  • Pressure807% weight
  • Prey Activity4312% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
9.0°C
Estimated
Clarity
Clear
Air temp
7°C
Wind
W 10 km/h
Light breeze
Pressure
1011 hPa
Rain · 48h
1.1 mm
No meaningful rain
Rain · ahead
0.0 mm
No meaningful rain · next 48h

Live readings — water temperature is an estimate where the gauge does not record it.

How to fish it · for brown trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Good conditions. Clarity is favourable (95), Feeding time is weakest (40).
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
2
1
Grayling seasonSeason
1
2
2
2
2
2
1
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
1

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

Gallery · 1
  1. Terrain map of the venue
    Terrain map
Permits & access
Permit required — see local rules.
  • Croatian fishing licence + local permit.
Directions
Apple MapsGoogle Maps
About this water

Beautiful karst river with tufa barriers and waterfalls. Wild brown trout in clear pools between travertine cascades. The tufa character creates unique habitat — slow glides above barriers, faster runs below. An unusual and visually stunning fishery.

  • Karst
Seasons & zones
  • Trout1 March → 30 September
  • Grayling16 May → 30 November
Other water nearby · 5
Booking & contacts