The Onset Bay Center, in collaboration with the Wareham Public Schools Office of Beyond School Time, will hold an Earth Day-themed educational playgroup on Tuesday, May 30 from 10 a.m. to 11:15 a.m.

At the Onset Bay Center, 186 Onset Ave., children between the ages of 2 and 7 will read the book “The Sandcastle that Lola Built,” take part in a relay race and make sculptures out of sand.

To register for this event, contact Charlene Fitzpatrick by emailing cfitzpatrick@wareham.k12.ma.us or calling 508-291-3500, ext. 3556.