Updating Website for 2016

We will be roll forward and reconstruction this website for the 2016 season during December and early January.  We hope to publish the 2016 Leinster Open Sea Calendar ealry in the new year.


The tentative dates for the three big swims are as follows:

  • Dublin City Liffey Swim Saturday 6th August;
  • Dun Laoghaire Harbour Race Sunday 21sth August
  • Lough Dan Races Sautrday 27th August

We will be publishing manual and online application forms for these races early in the new year.  Applications for overseas entriew will open in ealry January and for Irish entries when the main season starts in June.  If you have any questions or queries please email us and include  your phone number on leinsteropenseaswim@gmail.com




Welcome to Leinster Open Sea

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Each weekend from June to September the swimming club of Leinster run open sea swimming races along the coast of Leinster.

Theses races are held at well known swimming locations such as

  • Malahide;
  • Portmarnock;,
  • Ireland’s Eye to Howth;
  • Bull Wall Clontarf;
  • Great South Wall;
  • Seapoint;
  • Dún Laoghaire Harbour;
  • Sandycove;
  • Killiney Beach;
  • Bray;
  • Wicklow North Beach;
  • Lough Dan, Roundwood, County Wicklow;
  • Lough Leane, County Westmeath;
  • Curracloe, County Wexford; and
  • the River Liffey.

Races range from 1,200 metres up to 10,000 metres.

In 2015 there were thirty three races commencing on Saturday 6th June with Garda SC race on Portmarnock Beach and finishing on Saturday 19th September with the 96th Dublin City Liffey Swim.

The races are run by either Leinster Open Sea (a not for profit and volutnary organisation) or the host swimming clubs of Leinster.

Our aim is to enable both adults and children to participate in the sport of sea swimming and to enjoy the benefits of  such great amenities as the River Liffey, Dublin Bay and the Irish Sea which are so close to our doorsteps.

Both Leinster Open Sea and the host swimming clubs try to keep entry fees as low as possible so that cost is not a barrier to participation.   The entry fee for ordinary club races are Euro 10 for adults and Euro 5 for minors.  For some of the large races the entry fee is higher in order to cover costs.

The two most prestigious races on the Leinster Open Sea Calendar Races are the 96th Dublin City Liffey Swim and the Dún Laoghaire Harbour Race.

The Leinster Open Sea Races caters for swimmers as young as 14 years right up to ages the swimmers perhaps prefer not to disclose! A wide range of ages and abilities take part in the race.

Both Leinster Open Sea and the host swimming clubs warmly welcome new comers to the sport of sea swimming no matter their age or their ability.

If you can swim the length of your local swimming pool and want to start making the journey to swim your first sea race, Dublin City Liffey Swim or Dún Laoghaire Harbour Race, Leinster Open Sea will be delighted to help you on that journey. Please read our page “Basics A) How to Get Involved” for information about taking up the sport of sea swimming.

Many adults are intimidated taking up the sport of sea swimming later in life.   Both Leinster Open Sea and the host Swimming clubs have had many adult participate in the Leinster Open sea races after they first learned to swim.  We help new comers to the sport of swimming transition from pool to sea swimming.

If you do decide to join us for the 2016 Leinster Open Sea Race, the list of races will be published in early 2016 on the page 2016 Leinster Open Sea Calendar . We also publish the names and contact details for other key races around Ireland which you may also be interested in participating in.


Leinster Open Sea