750m Distance
A one-way route from the start line in the fjord. You’ll be brought by boat to the start line, jump in and swim back to the Killary shore. A very achievable swim and the ideal length for first timers.
2km Distance
A one-way route from the start line in the fjord. You’ll be brought by boat to the start line, jump in and swim back to the Killary shore. A more challenging swim, perfect for those with a bit more experience.
3.9km Distance
A looped route from the Killary shore and back again. Set yourself a real challenge and swim this full Ironman distance. Ideal for confident and experienced open water swimmers.
Safety & entry requirements
The water temperature at this time of year is usually around 12-14°C. You’ll need some open water swimming experience to compete in all distances. Choose your distance carefully – you’ll need to have experience of swimming this distance in similar temperatures before you compete.
Tow-floats must be worn by all competitors. You can rent these when you enter or on the day at the information desk.
Our team of expert kayakers and safety boats will be with you all the way and there will be a medical team on hand.
This is the final event of the Gaelforce Great Swim Trilogy. Swim in the River Shannon, Lough Derg and Killary Fjord to complete the trilogy and collect your exclusive Gaelforce Great Swim Trilogy branded towel robe! Sign up for all three at the same time before the deadline on the 17 May 2025 to qualify.
We’ve designed the Great Swim Trilogy to follow the journey from lake to river to sea. With events in late spring, mid-summer and autumn, you can build your experience and distances as you go. The perfect challenge for your swimming year.
Gaelforce Great River Swim | Gaelforce Great Lake Swim
Details of the final route with relevant buoy colours, will be communicated at the start line briefing the morning of the event.
