Audubon Rummage Sale Shop through a barn full of treasures! This annual event is organized by the South Bend-Elkhart Audubon Society. Drop off your donated items at the Red Barn April 24-26 from 1 to 6 pm. Electronics or sofas not accepted. For more information, call 574-334-7761.

Hoosier Riverwatch Volunteer Water Monitor Training Become certified to monitor a stream and submit data to the state database. This training is open to all adults, and can be especially useful for educators. Gain experience with chemical testing kits and aquatic insect identification. Please attend both sessions. Registration is required by April 22. Part 2 is May 4. Both classes required. For more information, go to hoosierriverwatch.com

Blooming Wildflower Stroll Enjoy an evening at the Nature Preserve as we hike the trails with a park naturalist and observe nature's fleeting display of woodland wildflowers in bloom. Registration is required by April 30. Look for trillium, celandine poppy, anemone, Dutchman's breeches and more!