Start with Pheasant tail nymph (12-14) on a slow, natural presentation — check locally for the preferred method. If that does not produce, switch depth or speed before changing the pattern entirely.
Slow down everything. A booby on a fast-sinking line, left static, can pick up deep fish.
Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.
A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Hatch predictions
Top prey shown — see all 4 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
The most distinct national style here: Czech nymphing first, with short-line teams of 2 or 3 weighted nymphs central to trout and grayling fishing in fast rivers.
A reasonable day here, though temperature isn't quite in the sweet spot.
Fly fishing and boat fishing are permitted and the official fishery card allows retention of rainbow trout and brook char, but the evidence does not support presenting Slapy as a serious Czech trout destination; its identity is primarily that of a broad non-salmonid reservoir.
Large Vltava reservoir south of Prague and a well-known recreational and mixed-species fishery.
Start with Pheasant tail nymph (12-14) on a slow, natural presentation — check locally for the preferred method. If that does not produce, switch depth or speed before changing the pattern entirely.
Slow down everything. A booby on a fast-sinking line, left static, can pick up deep fish.
Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.
A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Hatch predictions
Top prey shown — see all 4 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
The most distinct national style here: Czech nymphing first, with short-line teams of 2 or 3 weighted nymphs central to trout and grayling fishing in fast rivers.
A reasonable day here, though temperature isn't quite in the sweet spot.
Fly fishing and boat fishing are permitted and the official fishery card allows retention of rainbow trout and brook char, but the evidence does not support presenting Slapy as a serious Czech trout destination; its identity is primarily that of a broad non-salmonid reservoir.
Slapy Reservoir is a reservoir in Central Bohemia, Czech Republic. It sits at about 296 m above sea level. Our data lists 4 species here, including rainbow trout, pike and zander. The trout season is recorded as running from 16 April to 31 August. The grayling season is recorded as running from 16 June to 30 November. Best window recorded for anglers: General reservoir windows vary by species; not a trout-led planning water. Core methods listed: Float tube; Streamer; Nymph drift. Nearby waters in our listings include Vltava 28 at 9.0 km, Orlík Reservoir at 30 km and Berounka at 37 km.
