Maine Open Farm Day will be held on Sunday, July 24. An annual celebration held across the state, open farm day is an open-house style event during which host farms extend an invitation to the public to learn more about their businesses and what they do.

All are invited to join Hildy Ellis, recently retired coordinator at Knox-Lincoln Soil & Water Conservation District, as she leads participants on a fern walk at Midcoast Conservancy’s Hidden Valley Nature Center on Friday, July 15 from 10 a.m. to noon.

Three historic sites in South Bristol will be open Saturdays from 1-4 p.m. from July 2 through Aug. 27. Guides will be available for tours and answer questions.

On Saturday, July 16, the Newcastle Historical Society will host a photographic exhibit and sale outside of the museum in the parking lot at the corner of Pump Street and Main Street in Newcastle next to the town office. The exhibit will be on display from 10 a.m. to 2 p.m.

Come help The Lincoln Home celebrate 95 years of serving seniors and the Lincoln County community.

The South Bristol Historical Society will hold its annual meeting on Wednesday, July 13 at Union Church Parish Hall starting at 6:30 p.m. The society business meeting will be followed by a presentation by local author Jody Holmes Bachelder, who will speak about her book, “Here First: Samoset and the Wawenock of Pemaquid, Maine.”

Midcoast Conservancy and the Jefferson Public Library are partnering to offer a “Wild Child” series of nature events.

Stackhouse Landscaping in Bristol brings back the Send A Kid to Camp Hot Dog Party, Friday, July 1, at 6 p.m.

Coastal Rivers Conservation Trust naturalist Sarah Gladu will lead a guided hike along the River~Link Trail in Edgecomb and Newcastle from 9 a.m. to 1 p.m. on Wednesday, June 22.