Go to page: Start
Go to page: Gaelforce 12km Ultra Marathon River Swim
Gaelforce 8km Marathon Fjord Swim

12/09/2026| KILLARY FJORD
An 8km point-to-point long distance sea swim in the dramatic landscapes of Killary Fjord, along Ireland’s Wild Atlantic Way.
Competitors will navigate a looped route, combining endurance and raw wilderness, for a challenging and rewarding experience in a truly spectacular natural setting.
This event is ideal for controlled endurance training and open-water preparation.
HIGHLIGHTS
- 8km marathon sea swim in Ireland’s only fjord.
- Point-to-point endurance course through Killary Fjord.
- Sheltered fjord waters with natural tidal influence.
- A sustained endurance swim requiring pacing and rhythm.
- Ideal progression distance for strong open-water swimmers.
- Excellent preparation for marathon and channel swims.

Go to page: What's included
Go to page: Safety & Entry Requirements
Go to page: Event Add-Ons
Go to page: Event Training & Support
Go to page: TURN UP THE ADVENTURE
Go to page: FAQ