The Massachusetts Freemasons will open their doors to the public for an open house on Saturday, Oct. 21 from 9 a.m. to 3 p.m.

Freemasons is the world’s oldest and largest fraternity. The organization operates under the belief that men have the responsibility to improve themselves while remaining devoted to their family, country, faith and fraternity.

The Freemasons’ local location is at the Social Harmony Lodge at 2509 Cranberry Highway, Wareham.

There will be free tours, with children’s activities and refreshments.

Kids can get a free pumpkin — one per child — while supplies lasts.

The open house will be followed by a 6 p.m. showing of “The Bridgewater Triangle.” There will also be a Q&A session with Matt Moniz and Andy Lake from the movie.