- Free fishing
- Fly only
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.
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.
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
Top nymph shown — see all 2 guilds 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.
- Lake and stream rules differ; the Oirase runs through protected scenery
- Confirm local permits and any closures.
A good match for Lake Towada / Oirase — most conditions are close to what it fishes best in.
Caldera lake in Towada-Hachimantai National Park. Terrain map
- Wind conditions (ripple) closely match what this water fishes best in.
- Temperature (cool) is in the sweet spot for summer fishing.
- Char late February to April → late September to mid-October
Honshu/Shikoku/Kyushu keiryu are managed by local fishery co-operatives — a yugyoken (day/annual ticket) is required, and most streams close around 30 September / mid-October for spawning. Species are surfaced in prose only (no engine slugs for yamame, amago or iwana). Legal status: guidance_not_permission.
Lake Towada / Oirase
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.
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.
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
Top nymph shown — see all 2 guilds 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.
- Lake and stream rules differ; the Oirase runs through protected scenery
- Confirm local permits and any closures.
A good match for Lake Towada / Oirase — most conditions are close to what it fishes best in.
Caldera lake in Towada-Hachimantai National Park. Terrain map
- Wind conditions (ripple) closely match what this water fishes best in.
- Temperature (cool) is in the sweet spot for summer fishing.
- Char late February to April → late September to mid-October
Honshu/Shikoku/Kyushu keiryu are managed by local fishery co-operatives — a yugyoken (day/annual ticket) is required, and most streams close around 30 September / mid-October for spawning. Species are surfaced in prose only (no engine slugs for yamame, amago or iwana). Legal status: guidance_not_permission.