Bird walk
Gateway State Trail
7-8 a.m. Saturday
Meet at the parking lot where Hwy. 96 crosses the Gateway State Trail at Duluth Junction. Bring binoculars if you have them. You'll identify bird species using sight and sound. Contact robertbystrom1@gmail.com or call 651-439-3583 with questions. More info: www.mndnr.gov/ptcalendar.
Bird walk II
Lowry Nature Center
7:30-9:30 a.m. Saturday
Identify birds while hiking through different habitats. Bring your own binoculars. There will be pairs to borrow. Children 17 years and younger must be with a registered adult. Reservations required. More info: 763-694-7650 or www.threeriversparks.org.
Spring stroll
Interstate State Park
6:30-7:30 p.m. Saturday
Meet at the park office to take a one-mile naturalist-led walk to spot newly arrived birds and blooms. The walk will include some uneven terrain. More info: 651-465-5711 or www.mndnr.gov/ptcalendar.
Geocaching
William O'Brien State Park
10:30-noon Saturday
Learn basic GPS skills and then head out to find hidden caches. To register, call 651-433-0500. More info: www.mndnr.gov/ptcalendar.
Women's archery
Elm Creek Park Reserve
10 a.m.-noon Sunday