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Summer Heat Hots Up on Dublin Bay as New Ferry Competitor Enters Excursion Market

1st July 2025
Newcomer Howth Cliff Cruises excursion boat the Dún an Óir II, in Dún Laoghaire Harbour, having sailed from the peninsula across Dublin Bay, where existing operator Dublin Bay Cruises operate their St. Bridget, as seen astern. The increased capacity provides more options to take in Dublin Bay which is designated a UNESCO biosphere, with its stunning panoramic views and marine coastal wildlife including seals, dolphins and porpoises.
Newcomer Howth Cliff Cruises excursion boat the Dún an Óir II, in Dún Laoghaire Harbour, having sailed from the peninsula across Dublin Bay, where existing operator Dublin Bay Cruises operate their St. Bridget, as seen astern. The increased capacity provides more options to take in Dublin Bay which is designated a UNESCO biosphere, with its stunning panoramic views and marine coastal wildlife including seals, dolphins and porpoises. Credit: Jehan Ashmore

A new operator has entered the Dublin Bay coastal excursion market, as Howth Cliff Cruises recently launched services using Dún Laoghaire Harbour, writes Jehan Ashmore.

For the first time, the incumbent operator, Dublin Bay Cruises, whose St. Bridget runs routes out of Dublin Port, Howth, and Dún Laoghaire since 2012, has had a direct competitor, Howth Cliff Cruises. This also family-run business of almost 80 years’ service has been providing ferry trips from the north Co. Dublin harbour to and around Ireland’s Eye in addition to the popular Howth peninsula cliff cruises that reach as far as the iconic Baily Lighthouse.

However, Howth Cliff Cruises, with its debut on the bay unlike Dublin Bay Cruises, does not call to the capital, though the new operator for the first time connects the two picturesque seaside harbour towns. As such, the newcomer competes with DBC on three of their 7 routes, also offering passengers stunning sweeping views of the bay, along with notable coastal landmarks, marine wildlife, and a rich maritime history.

Casting off as excursionists embark on a Dublin Bay Cruises round trip around Dalkey Island, while the new operator to Dun Laoghaire, Howth Cliff Cruises with its vessel, waits to use the same East Pier berth Photo: Jehan AshmoreCasting off as excursionists embark on a Dublin Bay Cruises round trip around Dalkey Island, while the new operator to Dun Laoghaire, Howth Cliff Cruises with its vessel, waits to use the same East Pier berth Photo: Jehan Ashmore

Passengers have the option of travelling with Howth Cliff Cruises on Fridays, Saturdays, and Sundays by sailing from Howth to Dún Laoghaire and from the south Dublin Bay harbour around Dalkey Island or from Dún Laoghaire back to Howth. All routes take one hour in duration and are operated by the Dún an Oir II.

In further detail, the Howth to Dún Laoghaire ferry departs at 12:30 from the large fishing harbour across Dublin Bay to the East Pier in Dún Laoghaire, the same location used by Dublin Bay Cruises. On this route, sightseers will take in views of the Howth Cliffs, Baily Lighthouse, Dublin Bay with its Poolbeg Lighthouse in the distance and enroute to those, of Dalkey and Killiney.

The Dalkey Island Tour departs Dún Laoghaire at 2.15pm, from where a leisurely boat tour also features views of Killiney Bay and the backdrop of the Wicklow Mountains before passing the goat-inhabited island again with a return to the harbour.

The final excursion option of the day is the Dún Laoghaire to Howth Ferry, departing at 3.30 pm from the East Pier, or take a leisurely boat tour passing Dalkey Island and Killiney with its hill and through Dublin Bay, down past the Bail Lighthouse, followed by the Howth Cliffs, and finishing in Howth.

Both harbours are conveniently connected with the DART line, via the city centre, giving options to travel out by ferry and return by train and vice versa.

On board the Dún an Oir II is a bar along with snacks available, and it is the largest to join the Howth Cliff Cruises existing fleet of four passenger boats. The distinctive twin-funnelled and orange-hulled vessel indicates to those familiar with the coastal ferry scene that it is a former ferry that served Cape Clear Ferries in West Cork, whose fleet of vessels has the same livery scheme.

Also, these brightly coloured vessels operate for their sister company, Cork Harbour Cruises, throughout Cork Harbour, linking Crosshaven and trips to Spike Island.

Jehan Ashmore

About The Author

Jehan Ashmore

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Jehan Ashmore is a marine correspondent, researcher and photographer, specialising in Irish ports, shipping and the ferry sector serving the UK and directly to mainland Europe. Jehan also occasionally writes a column, 'Maritime' Dalkey for the (Dalkey Community Council Newsletter) in addition to contributing to UK marine periodicals. 

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Dublin Bay

Dublin Bay on the east coast of Ireland stretches over seven kilometres, from Howth Head on its northern tip to Dalkey Island in the south. It's a place most Dubliners simply take for granted, and one of the capital's least visited places. But there's more going on out there than you'd imagine.

The biggest boating centre is at Dun Laoghaire Harbour on the Bay's south shore that is home to over 1,500 pleasure craft, four waterfront yacht clubs and Ireland's largest marina.

The bay is rather shallow with many sandbanks and rocky outcrops, and was notorious in the past for shipwrecks, especially when the wind was from the east. Until modern times, many ships and their passengers were lost along the treacherous coastline from Howth to Dun Laoghaire, less than a kilometre from shore.

The Bay is a C-shaped inlet of the Irish Sea and is about 10 kilometres wide along its north-south base, and 7 km in length to its apex at the centre of the city of Dublin; stretching from Howth Head in the north to Dalkey Point in the south. North Bull Island is situated in the northwest part of the bay, where one of two major inshore sandbanks lie, and features a 5 km long sandy beach, Dollymount Strand, fronting an internationally recognised wildfowl reserve. Many of the rivers of Dublin reach the Irish Sea at Dublin Bay: the River Liffey, with the River Dodder flow received less than 1 km inland, River Tolka, and various smaller rivers and streams.

Dublin Bay FAQs

There are approximately ten beaches and bathing spots around Dublin Bay: Dollymount Strand; Forty Foot Bathing Place; Half Moon bathing spot; Merrion Strand; Bull Wall; Sandycove Beach; Sandymount Strand; Seapoint; Shelley Banks; Sutton, Burrow Beach

There are slipways on the north side of Dublin Bay at Clontarf, Sutton and on the southside at Dun Laoghaire Harbour, and in Dalkey at Coliemore and Bulloch Harbours.

Dublin Bay is administered by a number of Government Departments, three local authorities and several statutory agencies. Dublin Port Company is in charge of navigation on the Bay.

Dublin Bay is approximately 70 sq kilometres or 7,000 hectares. The Bay is about 10 kilometres wide along its north-south base, and seven km in length east-west to its peak at the centre of the city of Dublin; stretching from Howth Head in the north to Dalkey Point in the south.

Dun Laoghaire Harbour on the southside of the Bay has an East and West Pier, each one kilometre long; this is one of the largest human-made harbours in the world. There also piers or walls at the entrance to the River Liffey at Dublin city known as the Great North and South Walls. Other harbours on the Bay include Bulloch Harbour and Coliemore Harbours both at Dalkey.

There are two marinas on Dublin Bay. Ireland's largest marina with over 800 berths is on the southern shore at Dun Laoghaire Harbour. The other is at Poolbeg Yacht and Boat Club on the River Liffey close to Dublin City.

Car and passenger Ferries operate from Dublin Port to the UK, Isle of Man and France. A passenger ferry operates from Dun Laoghaire Harbour to Howth as well as providing tourist voyages around the bay.

Dublin Bay has two Islands. Bull Island at Clontarf and Dalkey Island on the southern shore of the Bay.

The River Liffey flows through Dublin city and into the Bay. Its tributaries include the River Dodder, the River Poddle and the River Camac.

Dollymount, Burrow and Seapoint beaches

Approximately 1,500 boats from small dinghies to motorboats to ocean-going yachts. The vast majority, over 1,000, are moored at Dun Laoghaire Harbour which is Ireland's boating capital.

In 1981, UNESCO recognised the importance of Dublin Bay by designating North Bull Island as a Biosphere because of its rare and internationally important habitats and species of wildlife. To support sustainable development, UNESCO’s concept of a Biosphere has evolved to include not just areas of ecological value but also the areas around them and the communities that live and work within these areas. There have since been additional international and national designations, covering much of Dublin Bay, to ensure the protection of its water quality and biodiversity. To fulfil these broader management aims for the ecosystem, the Biosphere was expanded in 2015. The Biosphere now covers Dublin Bay, reflecting its significant environmental, economic, cultural and tourism importance, and extends to over 300km² to include the bay, the shore and nearby residential areas.

On the Southside at Dun Laoghaire, there is the National Yacht Club, Royal St. George Yacht Club, Royal Irish Yacht Club and Dun Laoghaire Motor Yacht Club as well as Dublin Bay Sailing Club. In the city centre, there is Poolbeg Yacht and Boat Club. On the Northside of Dublin, there is Clontarf Yacht and Boat Club and Sutton Dinghy Club. While not on Dublin Bay, Howth Yacht Club is the major north Dublin Sailing centre.

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