Hearing and identifying sounds of the natural world is the goal of a program in English and Spanish, scheduled for 10 to 11:30 a.m. on Saturday at Coyote Hills Regional Park in Fremont.

This is the latest in a series of bilingual programs with naturalist Martha Cerda. The drop-in program is free, with no registration necessary. All ages are welcome; parent participation is required.

Coyote Hills is at the end of Patterson Ranch Road off Paseo Padre Parkway. Meet Cerda at the visitor center. Coyote Hills has a parking fee of $5 per vehicle. For information, call 510-544-3220.

Concord >> Commemorating the end of World War II in Europe on May 8, 1945, staffers of the East Bay Regional Park District and National Park Service will host a walk and program from 10 a.m. to 1 p.m. on May 7 in Concord at the future Thurgood Marshall Regional Park — Home of the Port Chicago 50.

The program is free, but registration is required. Attendance is limited.

During the mostly-paved, two-mile stroll, staffers will tell stories of the dedicated service members who worked at the Port Chicago Naval Magazine and describe the lasting social impact of the war.

Attendees should bring water and lunch, dress for full sun and warm weather. Restrooms will be available. For registration and information, visit ebparks.org/things-to-do or call 888-327-2757 and select option 2.

Alameda >> “Stop and Smell the Flowers” is the theme of Family Nature Fun Hour from 1:30 to 2:30 p.m. on both Saturday and the following afternoon at the Doug Siden Visitor Center at Crab Cove in Alameda.

The visitor center’s interpretive staff will lead a walk to see the blooms within the park.

Or you can join a naturalist from 9:30 to 11:30 a.m. on May 7 for a 2-mile stroll along the beach from the visitor center to the Elsie Rohmer Bird Sanctuary. On the way back, see what the tide has brought in.

Both programs are free and registration is not required. Crab Cove is at 1252 McKay Ave. off Alameda’s Central Avenue. For information, call 510-544-3187.

Berkeley >> Learn how to spin yarn without a spinning wheel — using your hands and a drop spindle — during a program from 2 to 3 p.m. on Saturday at Tilden Nature Area in the Berkeley hills, with naturalist Jenna Collins.

The drop-in program is free of charge. Meet Collins at Tilden’s Environmental Education Center, which is at the north end of Central Park Drive. For information, call 510-544-2233.

Oakley >> Find out what it takes to live like an animal at Big Break Regional Shoreline in Oakley during wildlife games led by the park’s interpretive staff.

The program is from 11 a.m. to noon on May 7. It’s free of charge and all ages are welcome. Adult participation is required. Meet at the sand pit.

Big Break Regional Shoreline is at 69 Big Break Road off Oakley’s Main Street. For information, call 510-544-3050.

Livermore >> There’s some good news. Del Valle Regional Park south of Livermore has partially reopened. No drinking water is available and there is limited access to restrooms. Facilities now open include the East and West Sides, Arroyo Staging Area, plus hiking trails (but use caution when encountering signs advising storm damage). The boat launch is open, but no bait or boat rental are available. The campground and visitor center remain closed.

Online >> These are just a few of the programs and activities planned in coming days in the East Bay Regional Parks. For the full calendar, go to ebparks.org/things-to-do. And before you visit a regional park, be sure to check “Alerts and Closures” on the Park District website to be sure that storm damage repairs or other factors have not resulted in park closures or limited access.

Ned MacKay writes about East Bay Regional Park District sites and activities. Email him at nedmackay@comcast.net.