The holiday season has officially arrived, and East County has plenty to offer residents and families looking to stay close to home this year. Check out our list of events, boutiques and holiday sing-a-longs as communities begin the countdown to Christmas.

Friday, Dec. 17

SUMMERSET SINGERS’ HOLIDAY CONCERT

Christmas favorites are performed by the Summerset Singers from 7 to 9 p.m. at the Brentwood Senior Activity Center, 193 Griffith Lane. Light refreshments will be served. Tickets are $8, available at the door or in advance at the center or the Brentwood Parks and Recreation Department Office, 101B Sand Creek Road. Checks should be made payable to the City of Brentwood. For more information, call 925-516-5380.

CHUCK’S HOLIDAY: A LOOSELY BORROWED HOLIDAY TALE

Presented by Actors in Motion, this one-act play written by an Adams Middle School student is based loosely on the classic “Charlie Brown Christmas.” Tickets are $5 or the donation of a toy. The curtain goes up at 7 p.m. at the Adams Middle School theater. A holiday reception immediately follows the show.

FESTIVAL OF CAROLS

The Pacific Masterworks Chorus and Liberty High School Chamber Singers, under the direction of Sue Stuart, perform at 8 p.m. at Trilogy at the Vineyards’ Club Los Meganos, 1700 Trilogy Parkway in Brentwood. A pre-concert reception begins at 6:30 p.m., featuring a no-host bar and hors d’oeuvres. Concert-only tickets are $20 for adults; $15 for children 12 and under. Reception-and-concert tickets are $35 for adults; $20 for children. Tickets may be purchased at the door or by e-mailing tickets@pacificmasterworkschorus.org or cathydanielrealtor@gmail.com.

Friday-Saturday-Sunday, Dec. 17-18-19

CHRISTMAS CAROLING

The St. Anthony Knights of Columbus Council 10414 and Columbiettes invite you to share in the spirit of the holidays with some traditional Christmas caroling from 7 to 10 p.m. Call ahead to secure a reservation for the carolers to come calling. Your Christmas donation will benefit local charities and organizations throughout the community. For additional information, call 925-813-4311 or e-mail quibbs@yahoo.com.

Saturday, Dec. 18 and 24

DISCOVERY BAY LIGHTED BOAT PARADE ON THE LAKE

A smaller version of the town’s lighted boat extravaganza shoves off at 5:30 p.m. from Starboard and Drakes Court bays. Call 510-825-3753 to enter your boat in the parade, or support the parade by lighting up your backyard for the party.

“O HOLY NIGHT”

This free musical performance takes place at Golden Hills Community Church, 2401 Shady Willow Lane in Brentwood, at 6 p.m. on Dec. 18, and 4 and 6 p.m. on Dec. 24. For more information, call 925-516-0653, ext. 147.

Saturday-Sunday, Dec. 18-19

‘THE NUTCRACKER’

Brentwood Children’s Ballet Theater presents Tchaikovsky’s timeless classic “The Nutcracker” at Antioch’s El Campanil Theatre, 602 W. Second St. The curtain goes up Saturday, Dec. 18 at 1 and 5 p.m.; Sunday, Dec. 19 at 3 p.m. Reserved seats are $15; general admission $12. For tickets, log on to www.elcampaniltheatre.com or call 925-757-9500.