The Austin Parks Foundation, whose office is located at 507 Calles St., Ste. 116, Austin, celebrated its 25th anniversary on June 12. The nonprofit organization holds volunteer workdays, offers a free parking programming and has a community-initiated grants program. It also helps develop, maintain and enhance the Austin area’s more-than-300 parks, trails and green spaces. 512-477-1566. www.austinparks.org