Cardiff Bay Barrage

Morglawdd Bae Caerdydd

Completed in 1999, this barrage turned a tidal bay into a freshwater lake, with a walking and cycling path along its top linking Cardiff Bay and Penarth.

The barrage is about 1.1 km long and has a lock and fish passes. Walking and cycling paths run along its top. You can ride a loop of about 10 km from Mermaid Quay around the bay and back to Penarth Marina. On the barrage there is a children's playground, a skate park and a sculpture commemorating Antarctic exploration. You can watch boats pass through the lock and get a close view of the Bristol Channel. It's free. Public bikes can be hired around the bay, or you can take a water bus to the far end of the barrage.

Opening hours

Open all day

Cycling · Trail · Bay views · Free entry

Nearby sights

Places to eat nearby

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