SEARSPORT — Friends of Sears Island will offer an exploration of some of the large old trees on Sears Island Saturday, April 30, from 9:30 to 11:30 a.m.

Forester Jake Maier will lead participants along the Homestead Trail, pointing out the large, “lucky” trees while talking about what combination of factors would allow them to survive and out-compete others over time. He will discuss the differences between legacy and lucky trees, the ecological consequences of different aspects of forest management, and demonstrate how to measure and compute the points for the big trees register.

This event is free and open to the public. Sears Island is on Sears Island Road off Route 1 just east of Searsport. Participants should park along the causeway at the end of the road and meet at the kiosk near the island gate by 9:30 a.m. Participants should bring water, a snack, insect repellent, and come dressed for a walk in the woods. Pets are not permitted at this program.

In the event of steady rain, the program will be rescheduled to Sunday, May 1, at 2 p.m. For more information and updates, visit friendsofsearsisland.org or facebook.com/friendsofsearsisland.