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Welcome to the Swim Across America - Seattle Open Water Swim.
Volunteer, swim a 1/2 mile, 1 mile or 2 mile distance in beautiful Lake Washington to raise money that funds clinical trials and cancer research at the Seattle Cancer Care Alliance. Over the last 8 years we've raised nearly $2 million, which has been leveraged to obtain matching grants that would otherwise not have been obtained.


The Swim Across America - Seattle Swim in Lake Washington has been a thriving benefit swim since its inception in 2009. This family-friendly event invites participants of all ages the opportunity to volunteer, swim a 1/2 mile, 1 mile or 2 mile distances to raise money for cancer research and treatment at the Seattle Cancer Care Alliance.

We raised over $425,000 last year and hope to make 2017 the biggest and best year yet. Join us as we "Make Waves to Fight Cancer" on September 9.


Distance Options:

  • 0.5 Mile
  • 1.0 Mile
  • 2.0 Mile
  • Kids Splash (25 yards)

Course Map:

Click here for a course map.


General Fundraising Requirement:

All swimmers are required to raise at least $300 by event day.

WaveMaker Swimmer: $1,000 minimum:

WaveMakers are elite SAA fundraisers and go above and beyond the call of duty by pledging to raise at least $1,000 regardless of your age. You can sign up for any of the 3 distances. WaveMakers get an exclusive WM gift and access to the WM village on event day where they will have access to other perks and swag.

Swim as an Individual, or on a Team

A person may elect to swim alone, or be part of a team. Many colleagues and college alumni will form teams, or teams may be formed in honor or memory of a loved one. All teams are inspirational and rewarding for all of us involved with Swim Across America. All team members are still required to meet the individual fundraising minimum of $300.

Kids' Splash!

  • Children age 11 and under are welcome to register on event day to participate in a 50m freestyle open water swim on event day.
  • There is no fee, waiver must be signed for each kid swimmer and parent. Kids must be able to swim 50 meters to enter and swim. Parent acknowledgement on form.
  • Kids' Splash starts at 9:45 am, after ½ mile and just before completion of 2-mile swim, while timers are reconciling times.

Registration Fees:

There is a registration fee that will be credited towards each swimmer's fundraising minimum. The registration fee will change as follows:

  • Register before July 1st with a registration fee of $25
  • Register between July 2nd and August 22nd with a registration fee of $50
  • Register between August 23rd and event day with a registration fee of $100
  • Register on Day of Event with a registration fee of $300

Online registration will close 48 hours prior to the swim! Event day registration may still be available if space permits.

How To Fundraise:

If this is your first time participating or if you just need some tips to be a better fundraiser, click here. It will walk you through the participant center and teach you how to email donors, share on social media sites and download the fundraising app.

You may support the swimmer of your choice by making an online donation. Or you may send a check, payable to Swim Across America, to the address below:

Swim Across America - Seattle
8711 SE 44th Place
Mercer Island, WA 98040

Make sure to include a note with the name of the swimmer you are donating to.


All swimmers and volunteers must complete the waiver found here.


Click here to learn more about the incredible deal offered by


6:00 – 7:00 am: 2 Mile Registration - Please be sure to bring your completed waiver form (neatly and legibly) to ensure a smooth registration process. 2 Mile Registration will close at 7:00 am sharp.

6:00 – 8:00 am: 1/2 Mile & 1 Mile Registration - Please be sure to bring your completed waiver form (neatly and legibly) to ensure a smooth registration process.

7:10 am: Swimmer safety meeting. Please be prompt, we want you included!

7:15 am: South parking lot shuttles and car pools depart for 2 mile swimmers to Mercerwood Shore Club. We will have at 2 shuttles to accommodate the 2 mile swimmers – you may also take individual carpools to Mercerwood as needed. Please note that anyone driving to Mercerwood Shore Club must park along East Mercer Way and walk down to the beach area. Please do not park in the Mercerwood Shore Club parking lot.

8:00 am: Start 2 mile swim at Mercerwood Shore Club, finish at Luther Burbank swim beach.

8:30 am: Start 1/2 mile & 1 mile swims at Luther Burbank swim beach, finish at Luther Burbank swim beach.

9:30 am: Kids gather for the Kids' Splash

Awards ceremony


Click here for information about parking and our event location.

Click here for information about water temp and quality of Luther Burbank Swim Beach.


Seattle Cancer Care Alliance (SCCA) brings together the leading research teams and cancer specialists of Fred Hutch, Seattle Children's, and UW Medicine. When you seek treatment at SCCA, you access an extraordinary group whose sole mission is the pursuit of better, longer, richer lives for our patients.

For the past seven years, the Seattle chapter of SAA has generously supported research at SCCA, raising nearly $2.0 million to directly benefit the Pancreatic Cancer Specialty Clinic and the Swim Across America Cellular Therapy Lab. Last year, volunteer efforts bridged funding gaps; accelerated research in pancreas cancer—an area of exceptional need; and supported immunotherapy—an area of great promise.


Interested in being a SAA - Seattle Sponsor?

If you'd like to learn more about sponsorship opportunities, please review this 2017 Sponsorship Guide or email us.


Swim Across America makes swimmer safety the most important component of all our swimming events. Our Safety Director is responsible for coordinating all activities within the event, and will work closely with both local Police and Coast Guard representatives to ensure swimmer safety. We will have the Mercer Island Police Marine Patrol out on the course with us, as well as a number of lifeguards, safety kayakers and safety boats to ensure swimmer safety at all times. All boats will be able to communicate via both hand held and ship to shore radios. All swimmers are required to follow specific procedures to participate in the event. These procedures are designed to protect swimmers from injury and will be enforced by the event’s Safety Director.


All swimmers and volunteers must complete the waiver found here.

Swimmer Safety

Download the Swimmer Safety Document here.

2017 Safety Directors

Water Volunteer Safety

Download the Water Safety Volunteer Safety Document HERE.

Water Safety Volunteer Video


Volunteers are the backbone of the Swim Across America Family. Even if you aren’t a swimmer, you can still help us in the fight against cancer. Whether guiding swimmers safely to shore, captaining a boat or kayaking beside a swimmer in the last stretch of the course, volunteers ensure that our events run smoothly from beginning to end. Don't forget, volunteers can fundraise too if they want!

Click here to learn about all the ways you can volunteer.

To volunteer for SAA - Seattle, click here and proceed to register as a volunteer.