« All Events This event has passed. Youth Retreat at Lake Washington High School October 9, 2021 @ 12:30 pm - 3:30 pm « Philharmonia Retreat at Lake Washington High School BSD: No School » + Google Calendar+ Add to iCalendar Details Date: October 9, 2021 Time: 12:30 pm - 3:30 pm Event Category: Youth Symphony Related Events Spring Rehearsal #5 April 29 Spring Rehearsal #6 May 6 Benaroya Masterworks Concert* May 11 @ 3:00 pm - 5:00 pm