Notices to Mariners

Notices to Mariners are issued from a number of different sources, such as the UK Hydrographic Office, Trinity House or Local Harbour Authorities.

Safety

Notices to Mariners contain important navigational information such as chart updates, changes in buoyage, prior warning of activities such as dredging, exclusion zones, harbour closures and byelaws etc.

Local Notices to Mariners are often available online and many harbour authorities allow you to subscribe for email updates as and when a new notice is published.

Admiralty Leisure (the leisure division of UKHO) has an web-based Leisure Notices to Mariners service, which has been specifically produced for Admiralty Leisure charts and folios. This details every chart on its own page and gives weekly updates of new information. Chartlets, if required, are available to download.

Imray has a similar corrections service on their website.

The UKHO publishes Navigational Warnings for NAVAREA1 and the UK Coast on its website. Many of these warnings are of a temporary nature, but others may remain in force for several weeks and may be superseded by Notices to Mariners.

Glasson Dock/River Lune Notices to Mariners are available by email from the Lancaster Port Commission.

If you are aware of a source for Notices to Mariners which is not listed below, please email cruising@rya.org.uk

Admiralty Leisure	Langstone Harbour Board
Imray	Looe Harbour
Reeds Nautical Almanac	Lowestoft (ABP)
Trinity House	Littehampton Harbour
Northern Lighthouse Board	(Port of) Liverpool
Commissioners of Irish Lights	(Port of) London Authority
UKHO Navigational Warnings	Lowestoft (Broads Authority)
CMAL (West Scotland)	Lymington Harbour Commissioners
Argyll & Bute Council	Manchester Ship Canal
Belfast Harbour	Medway Ports
Bembridge Harbour	Milford Haven Port Authority
(Port of) Blyth	Newhaven Port Authority
(Port of) Bridgwater	Newlyn Harbour
Bristol (City Council)	Orkney Harbours
Bristol Port Company	Padstow Harbour
Brixham Harbour	Paignton Harbour
Broads Authority	Plymouth (QHM)
Caernarfon Harbour Trust	Poole Harbour Commissioners
Cardiff Harbour Authority	Portland Port
Cattewater Harbour	Portsmouth (QHM)
Chichester Harbour	(Port of) Ramsgate
Clydeport	Rye Harbour
Comhairle nan Eilean Siar	St Mary's Harbour
Cowes Harbour Commission	Salcombe Harbour Authority
Crouch Harbour Authority	(The Port and Haven of) Sandwich
Dart Harbour	Scarborough Harbour
(Port of) Dover	Scrabster Harbour
Falmouth Harbour Commissioners	Severn VTS (ABP)
Folkestone Harbour	Shoreham Port
Forth Ports	Sullom Voe, Shetland
Fowey Harbour	Southampton VTS (ABP)
Gloucester Harbour Trustees	Southwold Harbour
Guernsey Harbours	(Port of) Sunderland
(River) Hamble	Teignmouth Harbour
Harwich Haven Authority	Torquay Harbour
Holyhead Port	(Port of) Truro
Humber Estuary Services	Weymouth Harbour
(Port of) Ipswich	Whitby Harbour
Isle of Man	Yarmouth Harbour
Jersey Harbours

Links to Notices to Mariners can also be found in the RYA SafeTrx app.

RYA SafeTrx is an app for both Android and Apple iOS smartphones that allows you to track your journey on your phone.

RYA SafeTrx provides all recreational boat users, particularly dinghy cruisers, PWC users, RIB users, canoers, kayakers, wind and kite surfers and smaller boat users with an easily accessible and simple to use means that can inform HM Coastguard of their voyage plans and dynamic location in the event of distress.

This app is freely available to anyone who wants to be safer afloat. It is free to download and there is no charge to use it. Read more about the RYA SafeTrx app.