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Displaying items by tag: Geological

#unchartedrocks – The survey ships of the INFOMAR project – the Marine Institute's Celtic Voyager and the Geological Survey's Keary, Geo and Cosantoir Bradan – have been busy recently, and a lot of previously uncharted rocks have now been surveyed and notified to the UK Hydrographic Office for inclusion on the charts writes Norman Kean of the Irish Cruising Club. A couple of known rocks have also had their depths revised shallower, and would now be recognised as a significant hazard to small craft.

The most important new discoveries are these (Admiralty Notices to Mariners numbers in brackets):

• Rock with 2m, 2 cables off Rush Bay (1381/2014)
• Rock with 1.2m, 2 cables east of Loughshinny pier (1381/2014)
• Rock charted at 3.4m, north-east of the Fastnet, re-surveyed at 2.2m (0496/2014)
• Rock with 0.8m, halfway between Colleen Og Rock and the shore, at Dingle
• Numerous rocks around Inishskinny and south of Inishbofin (2672/2014)
• Rock with 1.5m, 2 cables south-east of Knife Rock, at Benwee Head in Mayo (3994/2014)
• Ballyhiernan Rock, west of Fanad Head, resurveyed from 3.4m to 1.7m (2620/2014)

The leisure sailing community has also made its contribution. A rock with 0.1m was discovered in Crookhaven Harbour in July by the crew of the yacht Eleanda (3645/2014). Fortunately she didn't hit it, but when they looked over the stern at low water on their anchorage, there it was, lurking a metre down. And very, very solid.

Not every change has been for the shallower – Limeburner Rock, off north Donegal, has had its depth revised from 2m to 3.5m.

It may be true that the rocks don't move, but the ever-increasing accuracy of the charts means that our knowledge of their existence, position and depth is constantly improving. Don't assume that your chartplotter package will pick this up automatically – it's best to check. The relevant Notices to Mariners can be found on www.ukho.gov.uk.

Published in Coastal Notes

Whether you're a boat enthusiast, historian, archaeologist, fisherman, or just taken by the natural beauty of Ireland's waterways, you will find something of interest in our Inland pages on Afloat.ie.

Inland Waterways

Ireland is lucky to have a wealth of river systems and canals crossing the country that, while once vital for transporting goods, are today equally as important for angling, recreational boating and of course tourism.

From the Barrow Navigation to the Erne System, the Grand Canal, the Lower Bann, the Royal Canal, the Shannon-Erne Waterway and the Shannon Navigation, these inland waterways are popular year in, year out for anyone with an interest in rambling; flora and fauna; fishing; sailing; motorboating; canoeing, kayaking and waterskiing; and cruising on narrowboats.

Although most will surely identify Ireland's inland waterways with boating holidays and a peaceful afternoon's angling, many varieties of watersport are increasingly favoured activities. Powerboat and Jetski courses abound, as do opportunities for waterskiing or wakeboarding. For those who don't require engine power, there's canoeing and kayaking, as Ireland's waterways have much to offer both recreational paddlers and those looking for more of a challenge. And when it comes to more sedate activities, there's nothing like going for a walk along a canal or river bank following some of the long-distance Waymarked Ways or Slí na Sláinte paths that criss-cross the country.

Ireland's network of rivers, lakes and canals is maintained by Waterways Ireland, which is one of the six North/South Implementation Bodies established under the British-Irish Agreement in 1999. The body has responsibility for the management, maintenance, development and restoration of inland navigable waterways on the island of Ireland, principally for recreational purposes. It also maintains Ireland's loughs, lakes and channels which are sought after for sailing; the network of canal locks and tow paths; as well as any buoys, bridges and harbours along the routes.

Along the Grand and Royal Canals and sections of the Barrow Navigation and the Shannon-Erne Waterway, Waterways Ireland is also responsible for angling activities, and charges Inland Fisheries Ireland with carrying out fisheries development, weed management and ensuring water quality.

Brian Goggin's Inland Blog

Giving his personal perspective on Ireland's Inland Waterways from present-day activities to their rich heritage, Brian Goggin tells it like it is with his Inland Blog.

From recognising achievements in management of the waterways to his worries on the costs of getting afloat on Ireland's canals, Goggin always has something important to say.

He also maintains the website Irish Waterways History that serves as a repository for a wealth of historical accounts of the past commercial and social uses alike of Ireland's rivers and canals, which were once the lifeblood of many a rural community.