Crymlyn Bog And Pant Y Sais National Nature Reserve
Crymlyn Bog And Pant Y Sais National Nature Reserve
4.6
(267)
4,374
hikers
121
hikes
Bus station hiking trails around Crymlyn Bog And Pant Y Sais National Nature Reserve offer access to a significant wetland landscape, characterized by lowland fen, extensive reedbeds, and waterlogged scrub. The terrain includes level grassy tracks and boardwalk sections, providing a unique environment for outdoor activities. This area, shaped by retreating glaciers, features a mosaic of swamps and fen meadows, with some routes following canal towpaths or lakeside trails. The reserve's proximity to industrial areas highlights its status as a…
Last updated: May 29, 2026
5.0
(1)
53
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
29
hikers
9.06km
02:19
40m
40m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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6
hikers
3.08km
00:56
110m
110m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
17
hikers
4km
01:02
20m
20m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
16
hikers
21.4km
05:27
70m
70m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
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My local, awesome place, great staff and a wonderful vibe !!!
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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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Amazing view across Swansea. It's so cool that this is so close to the city but feels like you are deep in nature in the forest. Nice to get a view across the city and Swansea beach 🫶
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A lovely cafe and bar on the sea front. They do lovely coffee and the food is great too. Great place to stop when you’re going for a walk on the beach! Dogs are allowed and there’s indoor and outdoor seating
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The top of Kilvey Hill is marked with a stone sit down area with commanding views down over Swansea and the coast. However, the true summit is back about 70 metres away on a blank piece of ground near the masts. Kilvey Hill at 193 metres, is a UK designated P100 hill with a prominence of 140 metres.
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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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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 over 120 hiking routes accessible from bus stations around Crymlyn Bog and Pant Y Sais National Nature Reserve. These include a mix of easy, moderate, and a few more challenging options, ensuring there's something for every hiker.
The terrain primarily features flat, easy-to-navigate paths, including level grassy tracks and extensive boardwalk sections that extend into the heart of the fen. This allows for an immersive experience in the unique wetland environment while keeping you safe from wet ground. Some routes may also follow canal towpaths or lakeside trails.
Yes, the area is well-known for its accessible trails. Pant y Sais, the smaller reserve, offers a short, accessible boardwalk suitable for wheelchair users. Many of the 69 easy routes available are flat and well-maintained, making them ideal for beginners or those seeking a relaxed walk. For example, the Halfords Swansea loop from Llansamlet is an easy 4 km route with minimal elevation gain.
Yes, many of the routes are designed as loops, allowing you to start and finish at the same point, often conveniently located near bus stops. For instance, the Swansea Marina – The Secret Beach Bar & Kitchen loop from St Thomas offers a moderate 10 km circular hike.
Absolutely. The numerous easy and accessible routes, particularly those with boardwalks, are perfect for families. Children will enjoy spotting wildlife and exploring the unique wetland landscape. The flat terrain ensures a comfortable experience for all ages.
Many trails in the Crymlyn Bog and Pant Y Sais National Nature Reserve area are dog-friendly, though it's always best to keep dogs on a lead to protect the sensitive wildlife and ground-nesting birds, especially in the nature reserve sections. Please check specific route details for any restrictions.
Crymlyn Bog is a haven for wildlife, especially birds. You might spot reed warblers, sedge warblers, Cetti's warblers, and even rarer visitors like marsh harriers or bitterns. The reserve also boasts a rich insect population, including numerous dragonflies and damselflies, and is one of the few places to find the rare fen raft spider. Keep an eye out for special wetland flowers like yellow iris and royal fern.
Beyond the natural beauty of the fen, you can explore historical elements like the concrete anchor points of a World War Two barrage balloon site on the 'Bog and Balloons Walk'. The proximity to Swansea also means some routes, like the Swansea Marina – Sail Bridge loop from St Thomas, offer views of the marina and city waterfront.
Spring and summer are excellent for birdwatching and seeing the wetland flora in bloom. Autumn offers beautiful colours, while winter can provide a tranquil, stark beauty. The boardwalks make many trails accessible year-round, but always check local conditions, especially after heavy rain, as some paths might become muddy.
Given the reserve's proximity to Swansea, there are various cafes, pubs, and restaurants available in nearby towns and along some of the urban-adjacent routes. For example, the Swansea Marina – The Secret Beach Bar & Kitchen loop from St Thomas passes by eateries near the marina.
The area is highly rated by the komoot community, with an average score of 4.5 stars from over 250 ratings. Reviewers often praise the unique wetland environment, the abundance of wildlife, and the well-maintained, accessible boardwalks that allow for an immersive nature experience close to urban areas.
While the majority of routes are easy to moderate, there are longer options for those seeking more distance. For example, the Swansea Marina – Sail Bridge loop from Swansea is a moderate 8.2 km hike. The region also offers 3 difficult routes for experienced hikers, though these might require a slightly longer walk from the nearest bus stop.


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