Expect to see a big parade of boats through the Ship Canal and in Lake Union tomorrow: May 4th is the annual Opening Day parade for boaters.

Connie Grant posted the above photo in the My Ballard Group of boats lined up in the Locks. “They’re here!” she writes.

Opening Day festivities have been happening since 1913, according to the Seattle Yacht Club.

“When the Ballard Locks opened our waters into the Salish Sea in 1916 and the Montlake Cut opened Lake Washington to Lake Union in 1913, our boating world expanded and enriched our lives,” they write on their website.

The parade itself takes place through the Montlake Cut, but there will be plenty of boats arriving and departing via the Ballard Locks if you want an up-close view.

To check out the full schedule of events and parade map, click here.