Start with Pheasant tail nymph (12-14) on a slow, natural presentation — check locally for the preferred method. Early in the day, try buzzers on a slow figure-of-eight or a booby on a fast-sink line near the bottom. Rainbows respond to more active retrieves — try short strips between pauses.
Fish early and late, try deeper during the heat of the day with a fast-sinking line.
Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.
A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.
Hatch predictions
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Hatch predictions
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Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
- State licence plus local reservoir permit required
- Boat access, launch rules and local management matter more here than trout-river assumptions.
A reasonable day here, though cloud isn't quite in the sweet spot.

Vraz Jistec Otava Terrain map
- Wind conditions (ripple) closely match what this water fishes best in.
- Trout 16 April → 31 August
- Grayling 16 June → 30 November
- Pike 16 June → 31 December
Czech non-salmonid predator season is effectively mid-June to year end. Sources vary by wording between June 15/16 because protection runs through 15 June and fishing starts after that.
- Carp 1 January → 31 December
Carp generally lacks a national predator-style close season in non-salmonid waters, but local fishery rules, daily limits and pond/reservoir operating periods may apply.
- Catfish 16 June → 31 December
Czech non-salmonid predator season is effectively mid-June to year end. Sources vary by wording between June 15/16 because protection runs through 15 June and fishing starts after that.
- Zander 16 June → 31 December
Czech non-salmonid predator season is effectively mid-June to year end. Sources vary by wording between June 15/16 because protection runs through 15 June and fishing starts after that.
Orlík Reservoir

Start with Pheasant tail nymph (12-14) on a slow, natural presentation — check locally for the preferred method. Early in the day, try buzzers on a slow figure-of-eight or a booby on a fast-sink line near the bottom. Rainbows respond to more active retrieves — try short strips between pauses.
Fish early and late, try deeper during the heat of the day with a fast-sinking line.
Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.
A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.
Hatch predictions
See the full sub-surface read with Pro.
Start free trial14-day free trial. Cancel anytime.
Hatch predictions
Top prey shown — see all 5 with Pro.
Start free trial14-day free trial. Cancel anytime.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
- State licence plus local reservoir permit required
- Boat access, launch rules and local management matter more here than trout-river assumptions.
A reasonable day here, though cloud isn't quite in the sweet spot.

Vraz Jistec Otava Terrain map
- Wind conditions (ripple) closely match what this water fishes best in.
- Trout 16 April → 31 August
- Grayling 16 June → 30 November
- Pike 16 June → 31 December
Czech non-salmonid predator season is effectively mid-June to year end. Sources vary by wording between June 15/16 because protection runs through 15 June and fishing starts after that.
- Carp 1 January → 31 December
Carp generally lacks a national predator-style close season in non-salmonid waters, but local fishery rules, daily limits and pond/reservoir operating periods may apply.
- Catfish 16 June → 31 December
Czech non-salmonid predator season is effectively mid-June to year end. Sources vary by wording between June 15/16 because protection runs through 15 June and fishing starts after that.
- Zander 16 June → 31 December
Czech non-salmonid predator season is effectively mid-June to year end. Sources vary by wording between June 15/16 because protection runs through 15 June and fishing starts after that.