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Fewston and Swinsty Reservoir Loop

Fewston and Swinsty Reservoir Loop

Two reservoirs for the price of one, connected by well-graded Yorkshire Water tracks. Quiet, well-maintained, and a reliable choice when everywhere else is ankle-deep.

MODERATE

Effort: Moderate distance, manageable climb

Underfoot: Mostly paths and tracks

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Distance
10.3km
Ascent
41m
Descent
42m
High point
172m
Est. time
1h 10m – 1h 30m
Route type
Loop
Runability100%

Runnable start to finish — nothing here forces you to walk.

In short

A 10.3km circuit around the adjacent Fewston and Swinsty Reservoirs in the Washburn Valley - good gravel tracks, minimal climbing, and reliable year-round conditions.

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Elevation profile0km5km10km172m141m
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Two reservoirs for the price of one, connected by well-graded Yorkshire Water tracks. Quiet, well-maintained, and a reliable choice when everywhere else is ankle-deep.

The route

Starting from the Swinsty Moor car park at the southern end of the Fewston embankment (LS21 2NP), the route runs north along the eastern shore of Fewston Reservoir, crossing the embankment at the northern end to pick up the western shore. The return follows the western edge of Swinsty Reservoir - the more southerly of the two - before cutting back across the embankment to the start.

The two reservoirs are managed by Yorkshire Water and the surrounding land is maintained as public access. The tracks are well-graded gravel, wide enough to run freely, and stay in good condition even after prolonged wet weather. It's one of the most reliable all-season routes in the area.

Total distance is 10.3km with minimal elevation change - the loop climbs around 41m in total and the surrounding tracks barely deviate. This makes it fast underfoot and good for tempo efforts or recovery runs when you don't want to think about the ground.

Washburn Valley

Fewston and Swinsty sit in the southern end of the Washburn Valley, part of the Nidderdale National Landscape. The valley was flooded in the 19th and early 20th centuries to supply water to Leeds - four reservoirs in a chain, each feeding the next. The water held here is treated and gravity-fed to the city below.

The birdlife is a reliable secondary attraction. The reservoir margins attract waders and wildfowl year-round, and the surrounding woodland holds resident woodland species. If you're moving at an easy pace, you'll hear them before you see them.

For a longer day, this circuit connects naturally with the Swinsty Reservoir loop to the south, or can be extended northward to incorporate Thruscross. See the combined reservoir routes for both options.

Practical notes

The terrain is genuinely flat, with around 41m of ascent across the whole loop. The car park at Swinsty Moor has toilets (including accessible RADAR facilities) and there is sometimes an ice cream van present. No cafe on site; nearest is Otley, 8km south.

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Watch out for

Height barriers at both car parks (2.1–2.2m) - not suitable for high vehicles. Tracks shared with cyclists and other users.

Leave No Trace

  • Leave nothing but footprints, take nothing but memories.
  • Please respect the countryside and all its inhabitants.
  • Dogs on leads near livestock, and around ground-nesting birds from March to July.
  • Gates as you find them — open or closed, leave it that way for the farmer and the next runner.
  • Take it all home — wrappers, peel, tissue, the lot. It doesn't count as biodegradable if you can still see it.
  • Stick to the path where the ground either side is wet, planted, or nesting habitat.

Full Countryside Code & Leave No Trace guide →

Common questions

Most runners complete Fewston and Swinsty Reservoir Loop in 1 hour 10 minutes to 1 hour 30 minutes, depending on pace and conditions.

Run by us· last checked June 2026

Jason Millward has run this route and written it up from the ground. How we check routes

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About the author

JM

Jason Millward

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Runner reports

Nobody's logged a run here yet. If you get out on it, a few lines about how it went helps the next person plan their day.

Kit for this route

Salomon ADV Hydra Vest 4

Salomon ADV Hydra Vest 4

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Mountain Fuel Sports Jelly Hydrogel Energy Gel

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Start from a town: Ilkley 9.2 km

Thruscross, Fewston and Swinsty from BlubberhousesHARD
Thruscross, Fewston and Swinsty from Blubberhouses
23.7km · 195m climb · Loop · Same start
Three reservoirs, one long run, and some of the best-maintained trail surfaces in the north. This is what you do when you want big distance without big hills.
Checked Jun 2026
Swinsty Reservoir LoopEASY
Swinsty Reservoir Loop
6.3km · 27m climb · Loop · Same start
The smallest of the Washburn Valley reservoir circuits. Straightforward, reliable, and the kind of route that gets used regularly rather than just once.
Checked Jun 2026
Thruscross Reservoir from BlubberhousesMODERATE
Thruscross Reservoir from Blubberhouses
13.5km · 162m climb · Loop · Same start
The middle option in the Washburn Valley reservoir series - more commitment than the short loops but less than the full three-reservoir circuit. Thruscross from below gives the valley its proper context.
Checked Jun 2026
Fewston Reservoir LoopEASY
Fewston Reservoir Loop
5.2km · 21m climb · Loop · 2.4km away
A short and beautiful run around this picturesque reservoir in the Washburn Valley
Checked Jun 2026
Simon's Seat from Thruscross ReservoirVERY HARD
Simon's Seat from Thruscross Reservoir
28.7km · 828m climb · Loop · 2.6km away
This route crosses two distinct landscapes in one loop - the flooded Washburn Valley around Thruscross, then the high gritstone fell of Simon's Seat - with barely any road between them.
Checked Jun 2026
Thruscross Reservoir LoopEASY
Thruscross Reservoir Loop
7.9km · 97m climb · Loop · 2.6km away
Thruscross sits above the rest of the valley and feels it - more open, more exposed, and noticeably quieter than Swinsty and Fewston below. Worth the extra 5 minutes drive.
Checked Jun 2026

Races on this ground

All Nidderdale races

Races starting within 20 km of the Fewston and Swinsty Reservoir Loop start, nearest first. If you are entered for one, this route is the rehearsal.