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United Kingdom
Wales
South Wales

Old St Mellons

Easy hikes and walks around Old St Mellons

4.6

(519)

9,449

hikers

545

hikes

Easy hiking trails around Old St Mellons offer a blend of rural countryside and suburban green spaces, providing diverse walking experiences. The region is characterized by generally low-lying terrain, with pleasant routes along river valleys, notably the Rhymney River, and around local lakes such as Hendre Lake. Hikers can explore ancient woodlands like Cath Cobb Woods and various managed parks, making it an accessible destination for outdoor activities.

Best easy hiking trails around Old St Mellons

  • The most popular easy hiking route is Rumney Hill Gardens and Riverside Park loop, a 2.7 miles (4.4 km) trail that takes 1 hour 10 minutes to complete. This route offers pleasant walks along the Rhymney River.
  • Another top favourite among local hikers is Roath Park Rose Garden – Roath Park Lake loop from Cyncoed, an easy 3.1 miles (5.0 km) path. This trail provides scenic views around Roath Park Lake.
  • Local hikers also love the Llanishen Reservoir loop from Cyncoed, a 1.9 miles (3.0 km) trail leading through a tranquil reservoir area, often completed in about 46 minutes.
  • Hiking around Old St Mellons is defined by river valleys, local lakes, and ancient woodlands. The network offers options for different ability levels, with many paths suitable for easy walks.
  • The routes in Old St Mellons are highly rated by the komoot community with an average score of 4.6 stars from over 480 reviews. More than 9,400 hikers have used komoot to explore Old St Mellons's varied terrain.

Last updated: May 19, 2026

5.0

(1)

31

hikers

#1.

Rumney Hill Gardens and Riverside Park loop

4.40km

01:09

40m

40m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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Easy

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

5.0

(6)

11

hikers

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Tips from the Community

Peter Turner
April 21, 2025, View of the Lake in the Nature Reserve

Stunning little lake with a nice path going round it. Some nice views in particular from the Eastern point where a winding bridge gives the best sight across the whole lake

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multiple well kept trails around the woodlands , but don't go cycling around the reservoir as I found out there is no cycling, even though there are no signs , i got abuse from aggressive walkers about it.

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0

narrow wooden bridge with water running over the pathway

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Whatever you do is don't cycle around the reservoir, got told off and abusively shouted at.

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This is a stunning walk along the ridge with clear views right across Cardiff and the Severn estuary. Highly recommend.

1

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Lisvane and Llanishen Reservoirs forms a vital part of the green and blue infrastructure of Cardiff. The mix of grassland, woodland, scrub and waterside habitats offers opportunities for all kinds of wildlife and nature. There are two Sites of Special Scientific Interest (SSSI) and much of the grassland and woodland outside of the SSSIs is designated as a Site of Importance for Nature Conservation (SINC). Dogs are permitted on the café balcony, car park and Grab & Go seating area only and are not permitted anywhere else on the site, including the paths. Natural Resources Wales has advised that the risk from dogs to the fungi is too great. Waxcaps are very sensitive to changes in habitat such as fluctuations in soil moisture, temperature and nitrate levels which can reduce the production of fruiting bodies. In particular, sudden changes to nitrate levels on the site – from dog urine specifically – can have a detrimental effect on the fungi. There is a fully accessible Visitor Centre with cafe, toilets, free wi-fi, room hire, equipment hire, changing rooms and other facilities include the boathouse, bird hide, education centre, nature trails and paths, bike parking/shelters and car parking.

1

0

Enjoy a pretty stroll through the woodland surrounding Llanishen Reservoir. Well-maintained dirt paths will lead you around the forest where there is a rope swing and stream to discover, a little something for the kids to enjoy too.

2

0

Riverside Park is a beautiful riverside oasis located in Rumney, Cardiff. Enjoy a stroll between green fields and hedges and breathe in some fresh air away from the bustling city.

2

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Frequently Asked Questions

How many easy hiking trails are available around Old St Mellons?

Old St Mellons offers a wide selection of easy hiking trails, with over 300 routes specifically graded as easy. These trails provide diverse experiences, from riverside paths to lake loops and ancient woodlands.

What kind of landscapes can I expect on easy hikes in Old St Mellons?

Easy hikes in Old St Mellons feature a pleasant mix of landscapes. You'll find routes along river valleys, notably the Rhymney River, and around local lakes like Hendre Lake. The area also boasts ancient woodlands such as Cath Cobb Woods and various managed parks, offering varied scenery.

Are there any easy circular walks in the area?

Yes, many easy trails around Old St Mellons are circular. For example, the Craig Llysfaen Summit View loop from Rudry offers an easy circular route with scenic views, covering about 4.4 km.

What do other hikers say about the easy trails in Old St Mellons?

The easy trails in Old St Mellons are highly regarded by the komoot community, with an average rating of 4.6 stars from over 480 reviews. Hikers often praise the well-maintained paths, the peaceful natural settings, and the accessibility of the routes for all skill levels.

Are there any family-friendly easy walks around Old St Mellons?

Absolutely. Many of the easy trails are suitable for families. The flat, circular path around Hendre Lake, for instance, is a popular choice, offering a chance to observe diverse wildlife in a Site of Special Scientific Interest. The various local parks also provide gentle, accessible options.

Can I bring my dog on the easy hiking trails?

Most easy hiking trails in Old St Mellons are dog-friendly, though it's always recommended to keep dogs on a lead, especially in nature reserves or areas with livestock. The riverside and park walks generally welcome well-behaved dogs.

Are there any short easy walks for a quick outing?

Yes, there are several short and easy walks. The Llanishen Reservoir loop from Cyncoed is a great option, covering about 3 km and typically completed in under an hour, offering a tranquil reservoir experience.

What natural attractions can I see along the easy hiking trails?

While hiking easy trails, you can explore several natural attractions. Highlights include the serene Hendre Lake, known for its birdlife, and the Rhymney River, which the Rhymney Trail follows. You might also encounter ancient woodlands like Cath Cobb Woods. For specific natural monuments, consider visiting Mynydd Machen Summit or Radyr Weir.

Are there any historical landmarks or points of interest near the easy trails?

Yes, the region has historical points of interest. You can find the Twmbarlwm Hill and Iron Age hillfort, which offers both historical significance and panoramic views. While not directly on an easy trail, it's a notable landmark in the broader area.

Is parking available for easy hikes in Old St Mellons?

Parking is generally available near popular trailheads and parks in and around Old St Mellons. Specific parking information can often be found on individual route pages or local council websites for parks like Hendre Lake or Riverside Park.

Can I reach the easy hiking trails using public transport?

Many areas around Old St Mellons are accessible by public transport, particularly bus services connecting to Cardiff city centre. Routes near residential areas or major parks often have nearby bus stops, making it possible to reach trail starting points without a car.

What is the best time of year to go hiking in Old St Mellons?

Old St Mellons offers pleasant hiking conditions throughout the year. Spring brings blooming wildflowers, summer provides lush greenery, and autumn showcases vibrant foliage. Even in winter, the low-lying terrain and well-maintained paths make for enjoyable walks, though appropriate footwear is always recommended.

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