Playing Outdoors calendar: Wednesday, April 27

Saturday, April 30

Fire and Floods — Geology of the Twin Falls Area: Register at 7:30 a.m. at the Idaho Museum of Mining and Geology, 2455 Old Penitentiary Road, Boise, for an 8 a.m. departure. Trip leader is Shawn Willsey, professor College of Southern Idaho. $10 museum members, $15 nonmembers. 853-1678, idahomuseum.org.

Experience Idaho Expo: 9 a.m. to 5 p.m. at Expo Idaho, 5610 Glenwood St., Garden City. Gather ideas for summer recreation and outdoor activities, home projects, RVs, ATVs, more. $5 admission, free for children 6 and younger. $1 off coupon at ibleventsinc.com/coupons.

Saturday-Sunday, April 30-May 1

Howdy’s Gas and Grub Fishing Derby: At Lake Cascade. Cash prizes totaling $900 will be awarded for the largest trout and stringer of three perch by weight for kids and adults. Final weigh-in at Howdy’s, 503 N. Main St., at 3 p.m. Sunday. Registration is open until noon Sunday. $8 entry fee, free for children 13 and younger. (208) 382-6712.

Friday, May 6

Dig Into Rocks Museum Open House: Noon to 9 p.m. at the Idaho Museum of Mining and Geology, 2455 Old Penitentiary Road, Boise. Geology hikes, museum tours, free minerals for kids, lecture by David Wilkins at 7 p.m. on “Terroir: The Dirt on Dirt.” Free. 571-5720, idahomuseum.org.

Saturday, May 14

Panning for Gold in Grimes Creek: Register at 7:30 a.m. at the Idaho Museum of Mining and Geology, 2455 Old Penitentiary Road, Boise, for an 8 a.m. departure. All-day field trip led by Don Dorman and the Idaho Gold Panners. Bring lunch and water. $15 general, $10 museum members. 853-1678, idahomuseum.org.

Sheep in the Foothills: 10 a.m. to 1:30 p.m. at Jim Hall Foothills Learning Center, 3188 Sunset Peak Road, Boise. Arts and crafts, music, sheep dog demonstrations, children’s activities, a lamb lunch, more. Free. 344-2271, idahowool.org.

Migration Celebration: 2 to 5 p.m. at Deer Flat National Wildlife Refuge Visitor Center, 13751 Upper Embankment Road, Nampa. Activity stations to learn about butterflies and other migrators. Free. 467-9278, fws.gov/refuge/deer_flat.

Saturday, May 21

Cycle for Independence: Metric century starts at 8 a.m., 25-mile at 9 a.m. and 10-mile at 9:30 a.m. at Riverglen Junior High School, 6801 N. Gary Lane, Boise. Fundraiser for the National Federation of the Blind of Idaho. $20-$40. Register at tvcblindidaho.org. Volunteers needed: 336-5333.

Peeking under the Surface: How Seismologists See Inside the Earth: 10 a.m. at the Idaho Museum of Mining and Geology, 2455 Old Penitentiary Road, Boise. Workshop for grades 4 and up. Taught by Michael Morison, PhD. $10. Register: 571-5720 by May 16. idahomuseum.org.

Saturday, June 4

LIMBitless Challenge: 10 a.m. at Table Rock. Opportunity for the adaptive and wounded veteran communities to engage in a physical experience. $10. 495-5642, limbitlesslife.org.

Sunday, June 12

Premier Rattlesnake Avoidance Training for Dogs: 10 a.m. to 2 p.m. at Veterans Memorial Park, 930 N. Veterans Memorial Parkway, Boise. Idaho Fish and Game officers will be holding a trap awareness seminar as part of the day’s events. Training is $50 for preregistered dogs, trap awareness seminar is free. Register: 463-2304, snakeavoidance.org.

Saturday, June 25

Tamarack Bike Park Opening Day: 10 a.m. to 4 p.m. at Tamarack Resort, 311 Village Drive. Offering lift service to mountain bikers Saturdays and Sunday from June 25 to Sept. 4. Season passes for the bike park are currently on sale for $99 plus tax if purchased before June 20. (208) 325-1000, tamarackidaho.com/event/bike-park-opening-day.

Sunday, Sept. 11

Jordan’s Ride: Late registration at 7 a.m. with start of first ride at 7:30 a.m. at Eagle Sports Complex, 12000 Horseshoe Bend Road, Garden City. Distances include 10, 30, 50, 100 and 105 miles. Benefit bicycle ride to raise funds for Inland Northwest SIDS Foundation and The SUDC Foundation. $35 individual, $25 children 15 and younger. jordansride.org.

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