Seafair: Information for Islanders

Blue Angels courtesy of Seattle Times

Seafair returns August 4 - 6, 2023 with a weekend full of festivities, including the popular Blue Angels air shows.

This event draws thousands of attendees to areas along the Lake Washington shoreline, including Mercer Island. Here's what islanders need to know:

Best Locations for Event Viewing:

  • Great locations to enjoy the event locally include Aubrey Davis Park, Groveland Beach Park, and areas along the north end of the island.
    • The designated Parks & Recreation Director has issued the following rule pursuant to MICC 9.30.220 intended to enhance public safety, welfare and convenience by allowing for adequate space and movement of attendees and emergency personnel throughout Groveland Beach Park. Interim Park Rule for Groveland Beach Park Aug. 4-6, 2023: The maximum capacity for recreational use by the general public at Groveland Beach Park first-come-first-serve basis shall be limited to five hundred (500) people starting on August 4, 2023 through August 6, 2023. No more persons from the general public shall be allowed into the park for recreational use while the park is at maximum capacity, as calculated by onsite City staff.

  • Remember to arrive early to find parking and watch for pedestrian traffic. Consider walking or biking to viewing areas for extra ease. 

Logistics Impacts:

  • Parks will be crowded and parking will be limited. Arrive early and be patient.
  • Roads will be congested and traffic control may be directing vehicles down alternate routes. Drive carefully and allow extra time to get home after the shows.
  • Proctor landing will be closed to the public to allow for first responder use.
  • Air shows are loud and noise is sporadic. Consider keeping pets inside during airshow practices and performances to prevent runaway pets.
  • The I-90 bridge will not close this year.

Boating Information:

  • Boaters should be mindful of No Wake Zones and restricted boat traffic areas during the event. Familiarize yourself with Washington State boating laws.
  • Mercer Island Marine Patrol will be on the lake along with additional vessels from surrounding law enforcement agencies to ensure everyone’s safety in the water and along the coastlines. Call 911 to report emergencies or safety concerns.
  • Sober boating enforcements will be in effect throughout Lake Washington. Don't drink and operate a vessel.
  • The Dept of Homeland Security and Coast Guard issue unique boating regulations for boaters and swimmers in Lake Washington during Seafair - these include how to interpret air horn signals from the Coast Guard, information on no-go zones, and more. Make sure you're aware of these restrictions and regulations.

Browse the full list of Seafair activities on the event's website.