WRC
-->
worldsmarathons.com

Gaelforce Great River Swim

Ireland flag
Lanesborough, Leinster, Ireland

calendar_today 15 May, 2027

directions_run Running

pool Water sports

language Official Website

sell €66.00 – €134.00

Register Now
Gaelforce Great River Swim

About the Event

Immerse yourself in the stunning natural beauty of Ireland’s Hidden Heartlands with the Gaelforce Great River Swim, an exhilarating open water swim along the meandering River Shannon. This event caters to swimmers at all levels—from beginners looking for their first taste of downstream swimming to seasoned athletes seeking a challenging endurance test.
Swimmers can opt for various distances tailored to suit individual preferences and abilities, each offering its own unique journey through the river’s winding bends and gentle currents. The serene setting provides an idyllic backdrop as you navigate the crystal-clear waters surrounded by lush landscapes.
Safety is paramount at Gaelforce Great River Swim, with a dedicated team of kayakers, safety boats, and medical professionals ensuring your well-being throughout the event. All participants are required to use tow-floats for added buoyancy and visibility in the water. Wetsuit requirements vary based on prevailing water temperatures, so be sure to check these guidelines before registering.
As part of the Gaelforce Great Swim Trilogy, completing this inaugural event sets you on a path toward earning a special reward upon finishing all three swims. Celebrate your achievements with fellow swimmers and revel in the unique experience that awaits along the River Shannon.
Join us for an unforgettable adventure where nature meets swimming excellence.

Races Offered

12km swim

May 15, 2027

straighten

Distance — 12K

terrain

Type — Running, Water sports

timer

07:45

sell

€134.00

800m swim

May 15, 2027

straighten

Distance — 0.8K

terrain

Type — Running, Water sports

timer

09:00

sell

€66.00

5.8km swim

May 15, 2027

straighten

Distance — 5.8K

terrain

Type — Running, Water sports

timer

10:30

sell

€75.00

3.5km swim

May 15, 2027

straighten

Distance — 3.5K

terrain

Type — Running, Water sports

timer

12:00

sell

€75.00

Weather History

These values represent the 3-year monthly averages for May in Lanesborough.

thermostat Temperature
9.0° / 16.9°
wb_sunny Feels like
6.3° / 14.3°
light_mode Avg sunshine hours
9h 58m
water_drop Avg rainfall
2.0 mm
ac_unit Avg snowfall
—
air Avg wind speed
12.5 km/h (Gentle breeze)
opacity Sweat loss rate
Low
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Moderate (4.2)
humidity_mid Humidity
78.2%
wb_twilight Sunrise
05:29
nightlight Sunset
21:26

About Lanesborough

Learn more about the host city, Lanesborough.

Scenic view of

Lanesborough–Ballyleague, more commonly known simply as Lanesborough, is a town in the midlands of Ireland. Lanesborough is on the County Longford (east) side and Ballyleague on the County Roscommon (west) side of the River Shannon, at the northern tip of Lough Ree.

Read more launch

Hotels & Places to Stay

Things to Do Nearby

Tours and activities near Lanesborough, powered by Viator.

Loading nearby tours and activities…

Runner Reviews

Read what other athletes have to say about their experience at the Gaelforce Great River Swim.

No reviews yet

Be the first to share your experience with the community!

Suggest an edit

Spotted an error or missing detail about the Gaelforce Great River Swim? Help us improve.

Nearby Races

Explore other exciting events happening in this same region.

2027 Athlone 10 mile run

2027 Athlone 10 mile run

location_on Athlone, Offaly, IE

calendar_today May 15, 2027

Other
MTC BALOR

MTC BALOR

location_on Sligo, Sligo, IE

calendar_today May 17, 2027

Other
Glendalough Lap of the Gap Marathon

Glendalough Lap of the Gap Marathon

location_on Glendalough, Ulster, IE

calendar_today May 22, 2027

Half-Marathon Marathon
MTC Oilliphéist

MTC Oilliphéist

location_on County Galway, Galway, IE

calendar_today May 14, 2027

Other

Recommended for You

Hand-picked events we think you’ll love.

Mancelona HS/MS XC Invite

Oct 07, 2026

Mancelona HS/MS XC Invite

Read more
CAMSC Championship

Oct 07, 2026

CAMSC Championship

Website for results purposes only, no registration.

Read more
Mancelona HS/MS XC Invite

Oct 07, 2026

Mancelona HS/MS XC Invite

Read more
Scotts Corporate 5k

Oct 07, 2026

Scotts Corporate 5k

This is a private corporate event that is not open to the public

Read more

Get race deals & updates

Subscribe to our newsletter for curated race picks and discounts.