Christopher Columbus Waterfront Park sits between the North End and the harbor, and on midsummer Sunday evenings its lawn becomes a free open-air cinema. The Friends of Christopher Columbus Park, the volunteer group that keeps the place blooming, put on the series, with films rolling at dusk under the park’s famous lighted trellis and the masts of the marina beyond.

The programming leans classic and family-friendly — beloved older films rather than first-run blockbusters — so it suits multigenerational crews and low-key date nights equally well. Bring a blanket or low chairs and a picnic, and arrive early enough to claim lawn space and watch the harbor go dark. Start times drift earlier as the summer winds down and dusk comes sooner. Free, unticketed, and one of the waterfront’s most pleasant traditions.