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Gaelforce 12km Ultra Marathon River Swim
15/05/2027 | RIVER SHANNON
A 12km ultra-marathon swim along the River Shannon, Ireland’s longest river.
Competitors will follow the sweeping bends of the river through gentle Irish countryside, aided by the current, navigating a course that rewards stamina, pacing, strategy and focus.
This route is ideal for athletes preparing for major long-distance or channel-style swims.
HIGHLIGHTS
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12km ultra-marathon river swim on the River Shannon.
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Downstream course following the natural bends of the river.
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Sections assisted by steady current helping maintain rhythm and pace.
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A sustained endurance swim rewarding pacing and strategy.
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Ideal preparation distance for marathon and channel swimmers.
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A distinctive long-distance river swim in the west of Ireland.
Go to page: Gaelforce 8km Marathon Fjord Swim
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