4.7
(210)
2,876
hikers
151
hikes
Hikes around Mawr explore a landscape defined by tranquil reservoirs and historic canal paths. The area, located near Swansea, features routes that follow the banks of the Lower and Upper Lliw Reservoirs. Many trails also incorporate sections of the Swansea Canal, passing through gentle woodlands and rolling countryside with relatively low elevation changes.
Last updated: May 2, 2026
4.8
(16)
153
hikers
8.83km
02:23
120m
120m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.7
(3)
22
hikers
10.1km
02:37
50m
50m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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5.0
(1)
81
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
23
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
6
hikers
12.3km
03:27
240m
240m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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A lovely little cafe for a quick pit stop en route
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Low bridge - probably best to lower your saddle - or even better - walk your bike under this bridge
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Nice gravel track down to the reservoir with lovely views. Track down can get muddy but good fun. Do-able on a gravel bike
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Easy walking along the Eastern and Southern edges of the reservoir, courtesy of the Gower Way (a 35-mile path linking Penller Castell to Rhossili if you fancy stretching your legs a little further). Fantastic views.
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Lower Lliw Cafe is open between 9 a.m. to 3 p.m. (Nov - Feb) and 9 a.m. to 4 p.m. the rest of the year.
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Set amongst the stunning mountain scenery of the Mawr, the Lower Lliw reservoir is surrounded by a variety of habitats including bracken, scrub, grass and woodland, supporting a variety of wildlife. If you're into birding, keep an eye out for Peregrine, Kestrel, Raven, Wheatear, Meadow Pipit, Skylark, Whinchat, Red Kite and Curlew - which have all been spotted here. There is an accessible path to the South of Lower Lliw Reservoir that will take you all the way to the Upper Reservoir. The circular path closer to the shore-line features steep steps in places.
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Cyclists need to be aware of vehicles and walkers using the road between the Lower and Upper reservoir.
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The trails in Mawr cater to a range of abilities, but most are considered easy to moderate. The landscape is primarily defined by gentle reservoir paths and quiet woodlands with relatively low elevation changes, making it accessible for most walkers. Out of over 160 routes, the vast majority are rated as easy or moderate, with only a few classified as difficult.
Yes, Mawr is an excellent choice for family outings. A particularly good option is the Lower Lliw Reservoir – Lower Lliw Café loop from Felindre. It's a short, mostly flat walk of about 3 km through the Lliw Reservoirs country park, which is ideal for walkers of all ages.
Many of the trails around the reservoirs and through the woodlands are suitable for walking with dogs. However, you will be passing through areas with wildlife and potentially livestock, so it's important to keep your dog under control, especially on paths like the Upper Lliw Reservoir loop from Rhyd-y-fro. Always check for local signage regarding leads.
For hikes around the Lliw Reservoirs, there is a dedicated car park at the Lower Lliw Reservoir. This serves as a convenient starting point for many popular routes, including the trail that connects the lower and upper reservoirs. Arrive early on sunny weekends as it can get busy.
The area is perfect for circular hikes. Most of the popular routes are loops that bring you back to your starting point. A great example is the From Lower Lliw Reservoir to Upper Lliw Reservoir loop, which provides a satisfying circuit connecting both reservoirs.
The main scenic draws are the tranquil waters of the Lower and Upper Lliw Reservoirs. The paths that follow the shorelines offer beautiful, reflective views. Additionally, sections that follow the historic Swansea Canal, such as on the Swansea Canal Trail loop from Faerdre, provide a charming mix of waterway and woodland scenery.
The hiking routes in Mawr are highly regarded by the komoot community, with an average rating of over 4.6 stars. Reviewers often praise the peaceful atmosphere, the well-maintained paths along the reservoirs, and the beauty of the quiet woodlands.
Yes, the Lower Lliw Reservoir Café, located near the main car park, is a popular spot for a break before or after a walk. It's conveniently situated on several routes, including the short family-friendly loop from Felindre, making it easy to plan a stop for refreshments.
Sturdy, comfortable walking shoes are recommended as some paths can be uneven or muddy, especially after rain. As with any hike in Wales, it's wise to wear layers and bring a waterproof jacket, as the weather can change quickly. The terrain isn't overly demanding, so heavy-duty mountaineering gear is not necessary for most trails.
While many routes are short and easy, there are options for a longer day out. The Swansea Canal Trail – Woodland Stream loop from Craig-cefn-parc is a great choice, covering over 12 km. It combines a flat canal-side walk with a more strenuous climb through woodland, offering more variety and a greater challenge.
There is a wide variety of trails to explore. You can find over 160 hiking routes around Mawr on komoot, ranging from short, easy strolls to more challenging moderate hikes. This network of paths ensures there's always a new route to discover.


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