Welcome to Cardiff Bay Mariners Arrival and departure Navigating Cardiff Harbour Mooring and berthing Safety Visitors What to do What's on Getting here Flat Holm Island Learn History Education Environment Cardiff Harbour Authority News Cardiff Harbour Authority turns 25!April 1, 2025Cardiff Harbour Authority (CHA) is celebrating its 25th birthday! To mark this special anniversary, the public is being offered the opportunity to find out more...Barrage closure – Thursday 20 – Friday 21 MarchMarch 10, 2025Cardiff Bay Barrage will be closed from the Penarth side to the Barrage café from Thursday 20 March at 5.30pm until Friday 21 March at...Barrage delays – week commencing 10 MarchMarch 5, 2025During the week commencing Monday 10 March, pedestrians and cyclists may experience delays crossing Cardiff Bay Barrage, due to equipment being transported along the Barrage....Design a Bay banner!February 19, 2025Cardiff Harbour Authority is turning 25 this year. To celebrate, we’d like primary school-age children to design a poster that sums up what Cardiff Bay...CHA marine fees – have your say!November 27, 2024Cardiff Harbour Authority is reviewing its Harbour Dues (navigation fees) and Permission to Moor (mooring licence) fees. Please share your views in this simple five-minute...Barrage car park closureOctober 30, 2024The Cardiff Bay Barrage car park will be closed on Monday 4 November. The Barrage will be open for pedestrians and cyclists, but there might... View all news and updates Local notices to mariners Marine incident reporting Water quality forecast Current water quality and weather Featured attractions Flat Holm IslandThe Enormous Crocodile benchMemo Bay CaféCardiff Bay Wetland ReserveTechniquestWales Millennium CentreCardiff Bay BarrageCardiff Bay Water Activity Centre View all attractions Local notices to mariners 2025cardiff head of the taff 13.04.2025Notice No. 04 - April 1, 2025 varsity boat race 05.04.25Notice No. 03 - April 1, 2025 dredging works -outer harbourNotice No. 02 - February 10, 2025 dredging works – river taffNotice No. 01 - February 4, 2025 Subscribe to the RSS feed Social media Follow us on Facebook Follow us on Instagram Follow us on X