Outdoor Discovery programs will present a program by Playthings Etc. at 7 p.m. today in the Masonic Shelter at Alameda Park off New Castle Road. The staff will demonstrate new toys in this hands-on program. Admission is free. Call 724-284-5383 or visit www.co.butler.pa.us.

Jennings Environmental Education Center, Route 528 near the intersection of routes 8 and 173, will be the site of a "Prairie Bloom" walk at 2 p.m. Sunday. Jennings is open from 8 a.m. to 4 p.m. weekdays and on weekends as scheduled. The trails are open daily from sunrise to sunset for hiking. Call 724-794-6011.

Moraine State Park will be the site of a "Family Fishing" program at 1 p.m. Saturday. This educational program will be held at the Bear Run boat launch on the South Shore. The program will look at how to rig a fishing rod, types of bait, knot tying, rules and regulations, casting and more. Participants are not required to have their fishing license while participating in the program. Register by calling the park office at 724-368-8811.

Todd Nature Reserve in Sarver will host naturalist-led morning hike Saturday, "Aquatic Macro-invertebrates" from 2 to 4 p.m. Saturday, and "Mini Beasts of Todd Nature Reserve" from 2 to 4 p.m. Sunday plus "Twilight Investigations" from 7 to 9 p.m. Wednesday. A nominal fee is charged for programs. A Nature Fest is planned for Aug. 7. Call 412-963-6100.

<B>McConnells Mill State Park</B>, Slippery Rock Township, Lawrence County, will be the site of "Survive Outdoors" at 2 p.m. Saturday and "Art in Nature" at 2 p.m. Sunday. Interpretive tours of the mill last about 45 minutes and are available at 1 and 2 p.m. Fridays and 1 and 3 p.m. Saturdays and Sundays. The old mill is open through Labor Day. Call 724-368-8811 to confirm programs.<B>Venture Outdoors North</B> office in Zelienople hosts a day trek from 10 a.m. to 4 p.m. Saturday at McConnells Mill State Park. Visit www.ventureoutdoors.org.