Do This Now: Find fossils, learn to mountain bike, take a guided canoe trip

Whitewater State Park

3-5 p.m. Saturday

Find, and keep, fossils of plants and animals that lived here hundreds of millions of years ago. Bring transportation, because the site is 9 miles from the park. (1-507-932-3007, mndnr.gov).

St. Croix State Park

1-4 p.m. Saturday

Take a guided 5-mile paddle down the peaceful St. Croix National Scenic Riverway. Rent canoes and kayaks from Pardun's Canoe Rental, located in the Nature Store building. Stop by or call 320-384-0508. Rent your boat in advance. Meet outside the store before 1 p.m. (1-320-384-6591, mndnr.gov).

Cuyuna Country State Recreation Area

Learn shifting, braking and body position, along with the basics of safety and trail etiquette. Bikes and helmets provided. Designed for ages 10 and up. Cost is $15 per child, $25 per adult. Reservations required (mndnr.gov/reservations, 866-857-2757)

St. Croix State Park

1-2 p.m. Sunday

Meet the naturalist outside the St. Croix Lodge for a canoe paddle-making demonstration. Try hand tools as you learn about different shapes and styles of paddles. (1-320-384-6591, mndnr.gov).

Richardson Nature Center

Uncover secrets of the natural world on a hike under the magic of the full moon. Cost is $5. This program is open to ages 8 and older. (763-694-7676, threeriversparks.org)

Cleary Lake Regional Park

9-11 a.m. Sunday

Learn kayaking safety and proper paddling techniques. Children 13 years and younger must attend with a registered adult. Equipment provided. Cost is $20. Make reservation by Friday. Call 763-559-6700. (threerivers­parks.org).

Fish Lake Regional Park

Learn safety skills and proper paddling techniques with qualified instructors. Beginners and anyone who has never had formal instruction will benefit from this class. Equipment provided. Cost is $50. Reservations are required. Call 763-559-6700.

9-11 a.m. Saturday

Bryant Lake Regional Park