Diamond of the Lake
$85
Join us for The Diamond, a great introduction (or re-introduction) to open water swimming. Choose either a half mile or full mile route, depending on your interests and abilities.
Upcoming Events
5 events found.
Tubby Trout 5k Open Water Swim 2026
$125
Celebrate the 14th anniversary of our iconic event in one of the most beautiful areas of Lake Washington.
The Intrepid Open Water Swim Series 2026
$275
Save $25 on these fantastic open water swim experiences. You'll swim a total of 13 kilometers, starting with the Tubby Trout and then moving on to the OctoChallenge.
Wilderness Adventure Swim 2026
$145
Join us for an unforgettable swim adventure. This approximately 1.2-mile Wilderness Adventure Swim takes place in a picturesque lake outside Seattle. This sublime lake is known to just a few, and is closed to motorized boats.
The Amazing OctoChallenge
$175
This 8k (approximately 5 miles) adventure swim features one of the most beautiful routes in Lake Washington. Expand your reach and bragging rights, and win an OctoChallenge medal.