Mermaid Quay Pay & Display (Cardiff Harbour Authority)
Visiting by boat
Mermaid Quay is a lively waterfront marina right in the heart of Cardiff Bay, surrounded by restaurants, bars, and the striking Wales Millennium Centre just steps away. The buzz of the bay makes this one of the most animated spots to moor up in Wales, with the Senedd building and waterfront promenade all within easy reach. The recently reconstructed car park now handles serious capacity, and dedicated cycle parking makes it easy to arrive without a car too.
What this marina offers
Marinas and anchorages near Mermaid Quay Pay & Display · times are dock to dock
Based on AIS data
quiet → busy
Popular Times
How full it gets, by local hour — tallest when the most boats are here.
- Busiest on Saturdays and Sundays
- Fullest around 13:00, emptiest around 10:00
- Half the boats arrive by 14:00
- 44% of visits are overnight
- Typical day stop: ~3h · max recorded 5 boats
Plan a Passage
Popular
10 legs boats have actually been recorded sailing.
How busy is it?
typically 11th busiest of 13 nearby spots across the year