Ghost town field trip
Whitewater State Park
6-8 p.m. Friday
• The town cemetery holds stories of pioneers, Civil War veterans and others who lived in the Whitewater Valley. (1-507-312-2300; mndnr.gov/whitewater)
Friday night hikes
Buffalo River State Park
5:30-6:30 p.m. Friday
• Hikes range from 1 to 2 miles. Learn how the Bluestem prairie changes throughout the growing season and track the change with use of a science app. (1-218-498-2124; mndnr.gov/buffaloriver)
Photography workshop
Mille Lacs Kathio State Park
10 a.m.-1 p.m. Saturday