The activity will start at 9 a.m. each day and is the kickoff to the natural building project at the island.
Organizers say it's a great opportunity for people of all ages to get involved by volunteering for either a few hours or days.
They will use Lake County clay to create adobe bricks and build a gateway wall, Clarks Island sign and bench at the entrance to Clarks Island at Highway 20, under the direction of Massey Burke.
The island is located next to the Tower Mart on Highway 20 in Clearlake Oaks.
For more information or to sign up to participate, visit www.konoctitrails.com/clarks-island or email This email address is being protected from spambots. You need JavaScript enabled to view it., or call 707-998-0135.