Co-ordinates of Channel Buoys believed correct to March 2012.
Watch the club notice board for later changes, and of course Notices to Mariners.
Chart Datum WGS 84
| Newport Deep | 51° 29′.36 | 002° 59′.12 |
| North Elbow | 51° 26′.97 | 2° 58′.65 |
| North West Elbow | 51° 26′.28 | 2° 59′.96 |
| English Welsh G. | 51° 27′.12 | 2° 59′.99 |
| Hope | 51° 24′.86 | 3° 02′.68 |
| Tail Patch | 51° 23′.52 | 3° 03′.60 |
| Weston | 51° 22′.62 | 3° 05′.75 |
| Holm Middle | 51° 21′.72 | 3° 06′.72 |
| Mackenzie | 51° 21′.75 | 3° 08′.24 |
| Monkstone | 51° 24′.89 | 3° 06′.02 |
| North Cardiff | 51° 26′.52 | 3° 07′.19 |
| Mid Cardiff | 51° 25′.60 | 3° 08′.08 |
| Cardiff Spit | 51° 24′.56 | 3° 07′.12 |
| South Cardiff | 51° 24′.18 | 3° 08′.57 |
| Ranie | 51° 24′.23 | 3° 09′.39 |
| Wolves | 51° 23′.13 | 3° 08′.88 |
| Lavernock Spit | 51° 23′.02 | 3° 10′.82 |
| Merkur | 51° 21′.88 | 3° 15′.95 |
| North One Fathom | 51° 20′.93 | 3° 12′.16 |
| Breaksea | 51° 19′.88 | 3° 19′.08 |
| East Culver | 51° 18′.00 | 3° 15′.44 |
| West Culver | 51° 17′.37 | 3° 18′.68 |
| Gore | 51° 13′.94 | 3° 09′.79 |
| Minehead Wave rider | 51° 13′.70 | 3° 28′.30 |
| Breaksea Tower | 51° 22′.52 | 3° 24′.54 |
| Outer Wrach | 51° 26′.20 | 3° 09′.40 |
| Clevedon | 51° 27′.40 | 2° 54′.90 |
| Barry Entrance | 51° 23′.48 | 3° 15′.42 |
| W.S.M Wave Rider | 51° 21′.22 | 3° 01′.10 |
| Welsh Hook | 51° 28′.60 | 2° 51′.90 |
| Welsh Water-Barry West | 51° 22′.20 | 3° 16′.90 |
| Avon | 51° 27′.90 | 2° 51′.70 |