Dog Walks in Cardiff Near Water

The best dog walks in Cardiff with water access are Llanishen Reservoir for a lakeside loop, the Taff Trail for riverside paths, and Forest Farm for canal-side walking. Cardiff has plenty of routes where your dog can paddle, swim, or just cool off on a warm day. Below are our top picks with practical details on parking, access, and what to expect.

Llanishen Reservoir

A flat circular walk around the reservoir with open grassland and direct water access at several points. The path takes 30-40 minutes at a gentle pace. Dogs love paddling at the edges, though swimming in the reservoir itself is discouraged. The walk is just two minutes from Waggy Wash Club on Ty Glas Road, making it the perfect walk-then-wash combination — straight from muddy paws to a warm rinse.

Taff Trail (Bute Park to Radyr)

The Taff Trail follows the River Taff from Cardiff city centre all the way north through Pontcanna, Llandaff, and beyond. Multiple access points along the river mean your dog can paddle in shallow sections, especially around the Blackweir and Llandaff Weir areas. The path is flat and well-maintained. Park at Sophia Gardens or Bute Park for the southern sections, or Radyr for the northern stretch.

Forest Farm Canal Walk

The Glamorganshire Canal towpath in Whitchurch offers a flat, sheltered walk alongside calm canal water. Dogs can access the canal at several gentle slopes — the water is shallow and slow-moving. The surrounding woodland keeps the path cool in summer. Free parking at the Forest Farm Road entrance. Expect muddy paws after rain.

Roath Park Lake

The lake loop at Roath Park is about 2km and passes alongside the water the entire way. While dogs aren't permitted to swim in the main lake, there are grassy areas where they can get close to the water's edge. The recreation ground to the north has off-lead space. Best visited early morning or on weekdays to avoid crowds.

Hailey Park Stream (Llandaff North)

A quieter option with a shallow stream running through the park. Dogs can splash through the stream at several crossing points. The park is relatively compact but peaceful — ideal for a shorter outing with water access. Free street parking nearby.

River Rhymney Path (Llanrumney to St Mellons)

A less well-known route following the River Rhymney through east Cardiff. The riverbanks offer multiple points where dogs can wade into shallow water. The path is unpaved in sections and can get muddy, but it's quiet and rarely crowded. Parking available at Llanrumney Hall or the retail park near St Mellons.

After the Walk: Dealing with Wet, Muddy Dogs

Water walks inevitably mean wet, muddy dogs. Rather than loading a soaking dog into your car and then wrestling them into the bath at home, plan your route to pass through Llanishen on the way back. Our self-service station has warm water, shampoo, and professional blaster dryers that get even thick double coats clean and dry in minutes. Free parking outside means no hassle getting from car to wash bay.

Regular post-walk washers save with our wash bundles — ideal if your dog is in the water every walk.