Damon Tighe will lead the exploration to find, identify and photograph the hardy invertebrate life still hanging on after the rains.

Meet in the parking lot of the Lake Merritt Boating Center at 10 am. Dress warm in layers in clothes that can get dirty. Bring your iPhone to capture photos for iNaturalist. Bathrooms nearby to wash hands after event.

There is a $5 entry fee for Lakeside Park, entering at Fairyland on Grand Ave. You can also park on Grand, Perkins and other side streets.