Fresh Pond Reservation, which protects the city’s drinking water supply, is critical wildlife habitat and provides Cantabrigians with green recreation space, gets its eighth annual Fresh Pond Day from 11 a.m. to 3 p.m. May 30.

A first – and free – family disco is coming Sunday, but because this is Cambridge there’s more than mirrored balls and 1970s-era samples and spins to be found at The Middle East Downstairs.

People who love to sing (and ideally do it well) should know there are a few slots left for adults to audition for this year’s “Christmas Revels” show at Harvard University’s Sanders Theatre, and many more slots available for kids.

Lesley University’s free daylong Culture Fest 2015 has authentic Native American wares for sale, Native American cuisine, a screening and discussion of the film “Winter in the Blood” and performances by Cheyenne and Plimoth Plantation Wampanoags.

Details for the city’s first We Overcame Winter celebration were released Thursday as forecasts promised a Sunday hitting 60 degrees or higher.

With Monday’s T-shirt and shorts weather, there’s a pretty good chance some Sunday soon will be sunny and over 60 degrees – and that’s the signal for a free party for everyone in the city.

The Cambridge Rindge and Latin School Alumni Association has announced its third annual homecoming schedule, stretching from just before Thanksgiving into December.

“Sailor Moon” geeks have two reasons to celebrate this week – a new story arc announcement and the second Sailor Moon Shoujo Spectacular.

This year’s Honk! street music festival include 29 bands from as far as Moscow, Paris, New Orleans and Los Alamos, and organizers are adding a “Day of Action” Friday in Boston.

The annual free event, sponsored by the city, attracts more than 4,000 people annually.