« 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 » Add to calendar Google Calendar iCalendar Outlook 365 Outlook Live Details Date: October 9, 2021 Time: 12:30 pm - 3:30 pm Event Category: Youth Symphony Related Events Spring Rehearsal #6 May 5 Garden Party Community Concert May 10 @ 3:00 pm - 4:30 pm Spring Rehearsal #7 May 12