Cardiff Bay is the city's waterfront playground, a former docklands area that has been reinvented as a district of arts, government and leisure. The bronze-clad Wales Millennium Centre hosts shows and performances at its heart, the Senedd and the Pierhead building sit close by, and Mermaid Quay offers waterfront restaurants, bars and shops. Techniquest is a science centre for all ages, and a wide choice of boat operators run trips around the Bay and out to the Barrage, a long embankment where you can walk or cycle with views over the Bay and the Severn Estuary. There is also a trip to the island of Flat Holm. The Bay is free to wander, so it makes a good half day of fresh air after a morning inside the castle or the museum.
Getting there is easy. The Baycar 6 bus runs from the city centre and stops at the Wales Millennium Centre, Cardiff Bay railway station is on a short branch line from the centre, the walk takes about half an hour, and a bike ride is shorter still. Drivers can reach the Bay by the M4 and the A4232, where several car parks serve the area. Many visitors walk one way and take the bus or train back, which turns the journey into part of the day.
Choose a rhythm for the day. Begin at the Wales Millennium Centre and the Senedd, where you can see the landmark buildings for free, then walk along the waterfront to Mermaid Quay for lunch. In the afternoon take one of the boat trips, which are run by several operators such as Cardiff Boat, Aquabus and Cardiff Cruises, or walk the Barrage for the wide estuary views.
Families can add Techniquest, and the Bay also has a cinema and bowling at the Red Dragon Centre and stand-up paddleboarding on the water. A Behind the Bay photo exhibition currently marks the 25th birthday of Cardiff Harbour Authority.
Dress for the weather. The Bay is open and exposed, so the wind can be sharp even on a bright day, and winter afternoons grow dark early, which is a good reason to schedule the walk for the middle of the day. In the evening the waterfront lights are attractive, and the Wales Millennium Centre is the obvious choice for a show.
Combine the Bay with the stadium tour on the way, or with a guided bike or walking tour of the city, and consider staying at voco St David's Cardiff if you want to wake up on the water.
What to expect
The experience
A free self-guided waterfront wander past the Wales Millennium Centre, Senedd, Mermaid Quay and the Barrage, with optional boat trips and Techniquest.
Best time
Midday on a dry day for the best light, or early evening for the waterfront lights and a show.
How long
Three to five hours, longer with a boat trip, a show or Techniquest.
Tips
Walk one way along the river and take the bus or train back, wear a windproof layer, and check boat operators for winter running times.
Quick picks
- Best for
- Anyone who wants fresh air, architecture and waterfront dining after a morning of castles and museums.
- Families
- Techniquest, the boat trips and the open waterfront keep children busy.
- Couples
- Walk the waterfront at dusk and book a show at the Wales Millennium Centre.
- Pair with
- The stadium tour on the walk out, or Cardiff Castle in the morning.
- Time needed
- Plan half a day.
Good questions
How do I get to Cardiff Bay from the city centre?+
Take the Baycar 6 bus, which stops at the Wales Millennium Centre, or the train to Cardiff Bay station. You can also walk in about half an hour or cycle.
What is there to do in Cardiff Bay?+
You can see the Wales Millennium Centre, the Senedd and Pierhead, eat at Mermaid Quay, visit Techniquest and take a boat trip. The Barrage walk gives wide views over the Bay and the Severn Estuary.
Is Cardiff Bay free?+
Yes, wandering the waterfront, the Barrage and the landmark buildings costs nothing. Boat trips, shows and Techniquest carry their own charges.
Can I take a boat trip in winter?+
Several operators run trips from the Bay, but frequency depends on the season and the weather. Check the operator before you go.
How long should I spend at Cardiff Bay?+
Allow half a day to walk the waterfront, have lunch and take a boat trip or walk the Barrage. Add more time for a show or Techniquest.







