Loch Thundair or Loch Hunder Depth Map & Fishing Spots (UK)

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Lake depth chart

Loch Thundair or Loch Hunder, UK

Max 60 ft

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Where to start

Sedge season & the Murrough window is on — see the hatch outlook

Hatch outlook

Sedge season & the MurroughActive window

Typical here: Jun 1 – Sep 30 · the Murrough and Green Peter are lough patterns from July, peaking the last weeks of August; evening sedge fishing runs to the season close

pupawarm summer evenings as the light fades
adultlate evening into dark, on calm water — the great red sedge is large enough to provoke explosive surface takes from big trout — fished dry off the shorelines and on the drift

Big-fish-on-top fishing in the last two hours of light — the sedge weeks of late August produce some of the best days of the lough year.

The evening sedge pulls big trout to the shorelines in low light — exactly when small surface plugs and slow-twitched 4–5cm minnowbaits shine along the rocky shores and weed edges; or run a bubble float with a dry Murrough behind it, twitched on the pause.

The event happens over lough shorelines, rocky shallows and weed edges on warm, calm summer evenings

Daddy-Long-Legs (crane fly)Active window

Typical here: Jul 1 – Oct 15 · dapped daddies documented from early July on Corrib; the famous window is mid-August through September, with grasshopper dapping in the same weeks

adultdaytime, on a drift with a wave — best on the breezy days that blow craneflies off the banks — the documented method is dapping: a natural or artificial daddy on a long rod and floss line, skipping across the surface ahead of the drifting boat; a dry daddy on the drift is the modern equivalent

The autumn wake-up: big trout that ignored everything through June and July suddenly become aggressive — often the largest browns of the season on a dry fly.

Fish the windward drifts where the terrestrials land — surface plugs twitched on a wave, or a bubble float trailing a daddy skipped on the surface (dapping with spin gear, effectively). The late-season big-fish window before the September close.

The event happens over windward shorelines, island shallows and drift lines on breezy August–September days

Next on this water

Buzzers & Duckfly (chironomids) · midgeMar 15 – Jun 30 · in ~6 months

Spring roach spawn (predator event) · baitfishApr 15 – Jun 15 · in ~7 months

Hawthorn Fly · terrestrialsApr 18 – May 15 · in ~7 months

The Mayfly (Ephemera danica) · mayflyApr 25 – Jul 5 · in ~7 months

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours here are generated from real agency depth surveys; use the survey badge for the provider, dataset, datum and measured coverage. Never use for navigation. Always check local regulations.

Depth · ft

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Recent catches at Loch Thundair or Loch Hunder

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Fishing Loch Thundair or Loch Hunder: what the data says

189-acre lake near Na h-Eileanan an Iar. The lake tops out around 60 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The depth data here comes from Murray & Pullar's Scottish loch survey of 1904, digitized from the bathymetric atlas published in 1910. Here's the year, species by species, as the scoring engine sees it.

Drawn out, this is 188 acres of water rimmed by 4.2 miles of bank. An index of 2.2 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. 62% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Tip to tip the water measures near 1.1 mi with a 0.6-mi widest point. The water lies in Na h-Eileanan Siar. For a second option, Loch a Chonnachair lies 1 mi north.

Brown Trout fishing at Loch Thundair or Loch Hunder

Early season brown trout use the shallows, holding in 3 to 25 ft. Summer is a 25 to 60 ft game here, winter a 5 to 35 ft one. The chart's best answer is Break off the point — drop-off, 43 ft, prime for summer. Best bite is after dark and early morning. Tie on a spoon at the thermocline or a deep stickbait (night) and you're in the game.

Season	Depth	Best window	Start at	Go-to baits
Spring	3 to 25 ft	dawn & dusk	Main-lake point (2 ft)	Stickbait off planer boards (shallow), Small spoon along mud lines
Summer	25 to 60 ft	night & dawn	Break off the point (43 ft)	Spoon at the thermocline, Deep stickbait (night)
Fall	5 to 30 ft	dusk & dawn	Main-lake point (2 ft)	Jerkbait over gravel, Casting spoon
Winter	5 to 35 ft	dawn	Break off the point (43 ft)	Jigging spoon, Small stickbait (slow)

European Perch fishing at Loch Thundair or Loch Hunder

Spring puts european perch in skinny water — 3 to 12 ft is the zone. Warm water sends them out to 8 to 28 ft; cold water stacks them in 12 to 33 ft. Shallow bay flat is the standout, a weed flat at roughly 1 ft, rated prime for spring european perch. Plan around early morning in the warm months. A drop-shot micro plastics or a small crankbait (perch pattern) covers the summer program.

Season	Depth	Best window	Start at	Go-to baits
Spring	3 to 12 ft	midday & dawn	Shallow bay flat (1 ft)	Small jig + curly tail, Inline spinner #1-2
Summer	8 to 28 ft	dawn	Shallow bay flat (1 ft)	Drop-shot micro plastics, Small crankbait (perch pattern)
Fall	10 to 33 ft	midday	Break off the point (43 ft)	Jigging spoon (small), Drop-shot on deep flats
Winter	12 to 33 ft	midday & dawn	open water	Tungsten jig + maggots, Small balance jig

Northern Pike fishing at Loch Thundair or Loch Hunder

Spring puts northern pike in skinny water — 2 to 8 ft is the zone. As the season builds they drop to 8 to 20 ft, wintering in 5 to 15 ft. Spring northern pike concentrate at Shallow bay flat, a prime-rated weed flat around 1 ft. Warm-month bites cluster around early morning and the evening. A bucktail or a weedless spoon over cabbage covers the summer program.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 8 ft	midday & dawn	Shallow bay flat (1 ft)	#5 inline spinner, Spoon (red/white)
Summer	8 to 20 ft	dawn & dusk	open water	Bucktail, Weedless spoon over cabbage
Fall	6 to 18 ft	midday & dawn	Main-lake point (2 ft)	Big rubber (Bull Dawg style), Husky-style jerkbait
Winter	5 to 15 ft	midday	Shallow bay flat (1 ft)	Tip-ups, Large jigging spoon

Arctic Char fishing at Loch Thundair or Loch Hunder

When the water first warms, arctic char slide up into 4 to 15 ft. By summer they slide out to 20 to 60 ft, and by winter most fish are in 10 to 40 ft. If you only fish one area, make it Deep basin: a deep basin around 60 ft that scores prime in summer. In summer the feeding windows fall in early morning. Keep a jigging spoon vertical or a tube jig (smelt) rigged through the warm months.

Season	Depth	Best window	Start at	Go-to baits
Spring	4 to 15 ft	midday & dawn	open water	Small casting spoon (silver/orange), Jerkbait (small)
Summer	20 to 60 ft	dawn	Deep basin (60 ft)	Jigging spoon vertical, Tube jig (smelt)
Fall	8 to 30 ft	midday & dusk	open water	Casting spoon (orange/gold), Beadhead streamer
Winter	10 to 40 ft	midday & dawn	Break off the point (43 ft)	Jigging spoon (glow/silver), Tungsten jig + plastic

Notable structure

Count 6 structure marks on this chart. The deepest, Deep basin, sits near 60 ft.

Deep basin: deep basin, around 60 ft
Break off the point: drop-off, around 43 ft
Main-lake point: point, around 2 ft
Secondary point: point, around 2 ft
Shallow bay flat: weed flat, around 1 ft
Back-bay flat: weed flat, around 1 ft

Common questions

How deep is Loch Thundair or Loch Hunder?

Loch Thundair or Loch Hunder is about 60 ft (18 m) deep at its deepest point. The depth data here comes from Murray & Pullar's Scottish loch survey of 1904, digitized from the bathymetric atlas published in 1910.

What fish are in Loch Thundair or Loch Hunder?

Anglers target brown trout, european perch, northern pike, arctic char on Loch Thundair or Loch Hunder. This isn't a survey of the water — none is published for it — but an informed estimate from the species common to the region, narrowed by this water's depth, size and each species' range.

Where is the best fishing spot on Loch Thundair or Loch Hunder?

Deep basin is the top-rated area: a deep basin in about 60 ft of water that rates prime for arctic char in summer. The interactive chart above rates every spot for each species and season.

When is the best time to fish Loch Thundair or Loch Hunder?

For brown trout, the summer bite is best in after dark and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.

Nearby waters

Loch a Chonnachair 1 mi · Loch Deòireabhat 1 mi · Loch Scadabhagh or Loch Scadavay 2 mi · Loch Crogabhat 2 mi · Loch Geireann 2 mi · Loch a Bhuird 2 mi · Loch Tarruinn an Eithir 2 mi · Loch Sgealtair 2 mi · Loch a Ghlinne-dorcha 2 mi · Loch na Garbh-abhainn Ard 2 mi · Loch na Buaile 2 mi · Loch an Struth Mhòir or Loch an Strumore 2 mi

See how Loch Thundair or Loch Hunder stacks up: best northern pike lakes in United Kingdom · best european perch lakes in United Kingdom · best brown trout lakes in United Kingdom · best arctic char lakes in United Kingdom

More water nearby: Na h-Eileanan Siar fishing maps (84 charts). Browse all United Kingdom fishing maps. See every water on DepthScout. Bathymetry: published agency survey data. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.