Friday, July 22, 6:30–9 p.m., Birch Bay Waterslides, 4874 Birch Bay-Lynden Road. Enjoy family fun at the watersides at this private event. Cost: $50 for four people. All proceeds benefit Boys & Girls Clubs of Whatcom County. Tickets available at Birch Bay Waterslides; Birch Bay Activity Center, 4711 Gemini Street; Embroidery by Dave, 384 H Street; or online at whatcomclubs.org.