Leinster Open Sea Calendar 2025

Leinster Open Sea Calendar 2025. Find out more information on how your swimming is going as the season progresses. Welcome back to leinster open sea and to the 2023 season we are delighted to announce the first race of the season will be held.

250m, 500m, 750m, 1000m, 1500m+ sea swimming challenges for adults & kids perfect for preparing for the killary great fjord swim, leinster open sea swims, and triathlons. Registration for the season has been temporarily closed.