Swim Ireland Open Water National Championships

The Swim Ireland Open Water National Championships is the pinnacle of competitive open water racing in Ireland. Held at Lough Key Forest Park in Boyle, Co. Roscommon, the 2026 edition on 26 July features multiple distance categories up to 10km. This is the national selection event for Irish open water representatives — the most competitive open water meet on the domestic calendar and the race where national titles are decided.

Lough Key is a large freshwater lake within a forest park setting — sheltered, scenic, and well-suited to competitive racing. Water temperature in late July is typically 16–18°C, making it one of the warmer events on the open water calendar. The course runs through the lake with turning buoys and is designed for competitive racing rather than recreational participation. This is a timed, competitive event with strict adherence to Swim Ireland open water racing rules. Expect a focused, serious atmosphere — this is where national titles and international selection places are on the line. Safety cover is comprehensive with rescue boats and kayakers. Wetsuits follow Swim Ireland open water competition rules (typically permitted below certain temperature thresholds).

Entry is through Swim Ireland's online registration system, with bookings opening from early March 2026. Qualifying conditions apply — check swimireland.ie/open-water for the specific requirements for 2026. Entry fees for Swim Ireland open water events range from €15–€50. Contact Mary Dunne, Open Water Events Manager, at marydunne@swimireland.ie for specific championship queries.

Lough Key Forest Park is just outside Boyle, Co. Roscommon — about 2 hours from Dublin via the M4/N4 and 1.5 hours from Galway. The forest park has its own car park with good facilities. Boyle town (5 min) has hotels, B&Bs, and restaurants. Carrick-on-Shannon (20 min) is a larger town with more accommodation options. The event coincides with peak summer season, so book accommodation in advance.

The Open Water National Championships cap the competitive open water season. Swimmers typically qualify through the Swim Ireland open water calendar, starting with the Malahide Swim Series (May) and progressing through summer events. For non-competitive open water at a similar time, the Gaelforce Great Lake Swim at Portumna (July) and the Galway Bay Swim (July) offer distance challenges without the qualification barrier.