Crymlyn Bog And Pant Y Sais National Nature Reserve
Crymlyn Bog And Pant Y Sais National Nature Reserve
4.5
(126)
7,376
riders
5
rides
No traffic road cycling routes around Crymlyn Bog And Pant Y Sais National Nature Reserve primarily utilize adjacent pathways, as the reserve itself is a sensitive wetland environment. The area is characterized by its extensive wetland ecosystem, including reed and sedge beds, with the Tennant Canal towpath forming a key feature for cycling. This towpath offers a mostly flat surface, connecting to the wider National Cycle Network and providing views of the canal and its surrounding flora and fauna. The…
Last updated: May 13, 2026
12
riders
35.9km
01:42
400m
400m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
20
riders
34.5km
02:08
840m
840m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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7
riders
12.7km
00:42
40m
40m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
2
riders
20.4km
01:33
320m
320m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
6
riders
28.8km
01:31
530m
530m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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Popular around Crymlyn Bog And Pant Y Sais National Nature Reserve
A lovely little cafe for a quick pit stop en route
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A nice pub along the trail. Great place to meet and finish a bike ride you get get coffee from the little van if it’s open or obvs a post ride pint 🍺
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The Marina is a great place to run. It is really flat and you can run past all the boats along the paths. The beach is close by and there are cafes and pubs that you can start or finish it. There's also public toilets there and there is a nice 5k loop or more
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Here lies a huge unexpected sandy beach between the industrial edges of Swansea and Port Talbot. Known as Aberavon Sands, it's one of the longest beaches in Wales. You can cycle on the long promenade and and enjoy a vibrant atmosphere.
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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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Swansea Marina, is the place "where the city meets the sea", located behind the Swansea barrage at the mouth of the River Tawe.
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There are 5 dedicated traffic-free road cycling routes in the immediate vicinity of Crymlyn Bog and Pant-y-Sais National Nature Reserve. These routes offer a mix of easy and moderate rides, perfect for exploring the area without vehicle interference.
The routes primarily utilize the Tennant Canal towpath and sections of the National Cycle Network. While the reserve itself is a wetland, the adjacent cycling paths are mostly flat and feature a mix of paved surfaces and light gravel. Pure road bikes with very thin tires might find some gravel sections challenging, but hybrid or touring bikes are well-suited for these conditions.
Yes, there is one easy route available. The Aberavon Beach Promenade – Café Remos loop from Baglan is a great option, covering approximately 13.4 kilometers with minimal elevation gain, making it ideal for a relaxed ride.
While cycling on adjacent paths like the Tennant Canal towpath, you'll be on the edge of a significant wetland ecosystem. Keep an eye out for diverse wetland plants such as yellow iris and royal fern. The area is also a haven for birds like reed warblers and sedge warblers, and in warmer months, you might spot various dragonflies and damselflies. The canal banks are also home to the rare fen raft spider.
Yes, the area holds historical significance. Crymlyn Bog itself marks an ancient boundary. While cycling, you can reflect on the Tennant Canal's historical role in industrial transport. A 'Bog and Balloons Walk' within Crymlyn Bog passes the site of a World War Two barrage balloon field, with visible concrete anchor points, offering a glimpse into the past.
The Tennant Canal towpath is an integral part of the National Cycle Network (NCN 43 and 46). This allows cyclists to extend their rides further into the Swansea Bay area, connecting to routes that lead towards Swansea City Centre, the Tawe River, and even towards Afan Forest Park for those interested in mountain biking.
The area is highly rated by the komoot community, with an average score of 4.51 out of 5 stars from 122 ratings. Reviewers often praise the tranquil, traffic-free nature of the routes, the scenic canal-side views, and the opportunity to observe nature in a unique wetland environment.
For a moderate challenge, consider the Swansea Marina – Three Cliffs Bay loop from Swansea. This route spans nearly 36 kilometers and includes some elevation gain, providing a rewarding ride through varied landscapes.
Yes, all the routes listed in this guide are circular loops, allowing you to start and finish at the same point. For example, the Lower Lliw Reservoir and Café – Upper Lliw Reservoir loop from Morriston offers a scenic circular ride of over 20 kilometers.
The area can be enjoyed year-round, but spring and summer offer the best conditions for wildlife spotting and generally drier paths. The wetland ecosystem is particularly vibrant during these months, with birds, dragonflies, and blooming flora. Always check local weather forecasts before heading out.
Crymlyn Bog and Pant-y-Sais National Nature Reserve is primarily a sensitive wetland environment designed for walking and nature observation, with dedicated boardwalks. Direct road cycling within the reserve itself is generally not permitted due to the delicate habitat and unsuitable terrain. The recommended cycling routes are on adjacent paths and the Tennant Canal towpath.

