Sebasticook Regional Land Trust will offer a foraging walk from 9:30 a.m. to 12:30 p.m. Saturday, July 18, at Connor Mill Trail, which meanders alongside Sandy Stream in Unity. Trevanna Grenfell, the local Hills to Sea Trail coordinator and wilderness survival instructor, will lead the group and identify wild edibles. Participants are asked to meet at the trail-head kiosk, which is near the intersection of Route 9 and Quaker Hill Road. Those who attend are encouraged to wear closed shoes and long pants, because there is some poison ivy in the vicinity. For more information, call 948-3766 or email [email protected].