Fire starter

St. Croix State Park, 5-6 p.m. Friday

Meet at the interpretive center to learn the basics of starting a campfire and make a set of fire starters with repurposed materials to bring home or use at a campsite. (1-320-384-6591, mndnr.gov)

Fall walk

Interstate State Park, 10-11 a.m. Saturday

Join a naturalist to discover the inside tips and tricks that animals use to get ready for the coming colder season. The program includes an easy 1-mile trail. Meet at the park office. (651-465-5711, mndnr.gov)

Seed-collecting

Frontenac State Park, 10 a.m.-3 p.m. Saturday

Help restore the park's ­prairie by collecting seeds from native plants. The seeds will be processed and replanted in the park to restore prairies. Also learn how past seed collections have created some beautiful areas in the park. Arrive anytime between 10 a.m. and 3 p.m. but plan on a minimum of two hours for seed collection. Meet at the park office. (651-345-3401, mndnr.gov)

Bird-banding

Lowry Nature Center, 9 a.m. — noon Saturday

Watch and learn as birds are trapped, banded and released. (threeriversparks.org)

Adaptive sports

French Regional Park, 1-4 p.m. Sunday

It is Adaptive Recreation Demo Day. Try adaptive mountain bikes, kayaks, archery equipment and geocaching. Socialize and make s'mores by a campfire. Cost is $8, and reservations are required. Call 763-559-6700 and refer to activity #425043-00. (threeriversparks.org)

Fall flowers

Fort Snelling State Park, 1-2:30 p.m. Sunday

Identify and discuss some of the late-summer wildflowers during a hike in the park. Meet at the front office. (612-725-2724, mndnr.gov)

Kayak color tour

Cleary Lake Regional Park, 1-3 p.m. Sept. 24

• Previous paddling experience required for this fall outing. Equipment provided. Cost is $20 and reservations are required by two days before the program. Call 763-559-6700 and refer to activity #444561-00. This program is for ages 14 and older.

Cedar Lake Farm Regional Park, 4-6 p.m. Sept. 24

• Reservation required two days before outing. Call 763-559-6700 to make a reservation and refer to activity #447761-00. (threeriversparks.org)