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The Amazing OctoChallenge

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Say Yes to Life Liability Waiver/Safety Plan
Terms and Conditions for Lessons and Events
Open Water Swim Lessons Special this year: Combine one open water swim lesson (worth $110) with any event for only $95. Technique-focused lessons benefit ANY skill level.
Swimming From the Inside Out Add the “Swimming from the Inside Out” freestyle stroke technique video and cheat sheet for $35
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One of Seattle’s favorite swims! Challenging and fun, this event fills fast.

How to Participate

Have you completed a 5k recently, or will you swim one this season? If so, the OctoChallenge has your name on it.

Criteria: All OctoChallenge registrants must complete at least one swim of 5k or longer by August 11th, 2026. Guila must receive proof of completion (via GPS screenshot, competition result, observer notes, or truthful statement) by August 12th, 2026.

Although we provide extraordinary, trained water safety personnel, we also ask that swimmers provide their own paddlers (kayakers or SUP) when possible.

Registration closes at midnight Tuesday, August 11, or when all spaces are filled. Register early to secure your place.

Date: SATURDAY, August 15th
Time: 9:00 AM – 2:00 PM
Cost: $175 Includes OctoChallenge medal

Although we supply extraordinary, trained safety craft, we also ask that swimmers provide their own paddlers when possible.

MANDATORY SAFETY MEETING (ONLINE)

7:30 pm PT, Thursday, August 13th

You must participate in this meeting in order to swim. Please factor this requirement into your decision to register.

Details

Location: Lake Washington
Length: 8k (approximately 5 miles)
Level: Challenging. Please register only if you are confident in your ability to swim the entire distance. There is a 4.5 hour cutoff; for safety reasons we will pick up swimmers who have not finished by 2:00 pm.
Water: Fresh
Wetsuit: Your choice to wear one or not

Series Discount: Save $25

The Intrepid Swim Series includes the Tubby Trout 5K in addition to The OctoChallenge. Build your endurance with these sequenced events while saving money. (You can also pay less with additional discount options.)

Waiver/Safety Plan

To swim with us, you must read and agree to the Say Yes to Life Liability Waiver/Safety Plan.

Discounts on Other Open Water Swim Events

Learn about our discount options.

The Intrepid Series
Tubby Trout

See a complete list of 2026 events.

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