The Audubon Society has planned the following events at the Succop Conservancy, 185 W. Airport Road, Penn Township. Some programs are free and some have small fees. Call 412-963-6100 or visit www.aswp.org to register. “Aw Nuts” is set for 10 a.m. to noon Saturday, in which participants will learn how to identify, harvest, process, and eat various native tree nuts, concluding with a workshop that shows how to make walnut hull ink. Extreme croquet will take place Sunday. A naturalist led morning walk is set for 9 a.m. Oct. 25.

Moraine State Park hosts a free kayak program “Fall Foliage Paddle” from 1 to 3 p.m. Sunday. To register or to reserve a park kayak, call 724-368-8811. Demonstrations of the historic oil well will be held from 10 a.m. to 4 p.m. Saturday at the central powerhouse site beyond the forestry and regional office building on Park Road off Route 528.

Jennings Environmental Education Center, Route 528, Brady Township, will be the site of “Night Flight,” a nighttime program featuring bats, at 7 p.m. Oct. 28. Registration deadline is Wednesday. Homeschool CSI: Bird Sleuth/Project Feeder Watch will be offered Oct. 31. “Herbs for Healthy Immune Systems” will be presented Nov. 4 in the form of one free program and one fee-based program. Call 724-794-6011.

Moraine Preservation Fund conducts summer cruises on its Nautical Nature pontoon boat from 1 to 3 p.m. Saturdays and Sundays through Oct. 28. Fees are involved. Call 724-368-9185 or 724-368-8811 for reservations.

McConnells Mill State Park in Slippery Rock Township, Lawrence County, will have a fall dog hike from 10 to 11:30 a.m. Saturday starting from Hell's Hollow. The historic gristmill will be open from 11 a.m. to 4 p.m. Saturdays and Sundays through October. Admission is free. Call 724-368-8811.A star party will start, weather permitting, at 6:45 p.m. Saturday at the Nicholas E. Wagman Observatory in Deer Lakes Regional Park, Frazer Township, near Russellton. The event is sponsored by the Amateur Astronomers Association of Pittsburgh. Admission is free, but donations are accepted for operation costs. Call 724-224-2510.