Boston’s holiday season is in full swing with more fun and festivities than you can shake a cinnamon stick at. From classic holiday productions to a very chilly nearly nude race, the season’s offerings will appeal to even the Scroogiest sorts. The Nutcracker. Boston Ballet’s production of Mikko Nissinen’s The Nutcracker got shiny new sets and costumes just last year, earning rave reviews from critics. Follow along as Clara follows her Nutcracker prince on an adventure to his kingdom in the clouds. Through Dec. 29. Boston Opera House, 539 Washington St., 617-695-6955, bostonballet.org.

Newbury Street Elf Challenge. When shopping on Newbury Street, be sure to keep an eye out for elves through December 20. Share a photo of the elves via Facebook, Instagram or Twitter with the tag #NewburyStreetElf for a chance to win a shopping spree. newburystreetleague.org.

Santa Speedo Run. What started out as five friends racing down Newbury Street in speedos and Santa hats has turned into an annual charity run with hundreds of participants. The approximately one-mile course takes runners down Newbury and Boylston streets. Speedo-like attire is required, but no thongs, please. Sat. Dec. 14 at 1 p.m. ssrunners.org.

Celtic Christmas Sojourn. WGBH host Brian O’Donovan brings together musicians and dancers from around the Celtic world for this annual holiday event. December 15, 19–22, Cutler Majestic Theatre, 219 Tremont St., 617-824-8000, wgbh.org.

SoWa Holiday Market. Featuring handmade goods from New England’s best indie crafters, artists and designers, the SoWa Holiday Market is a favorite place to find unique gifts and decorations. December 14 & 15, Benjamin Franklin Institute of Technology, 41 Berkeley St., sowaholidaymarket.com.

Moo Shu Jew. Who says Jewish people should feel left out on Christmas Eve? The New Center for Arts and Culture’s event features comedians Lenny Marcus, Scott Blakeman, Dana Eagle (pictured) and Steve Calechman. Tickets include a banquet of tasty Chinese food. December 24, China Pearl, 9 Tyler St., 617-531-4610, ncacboston.org.

Historic Holiday Stroll. The Freedom Trail Foundation’s costumed guides share how Boston’s holiday traditions have evolved. The tour follows the historic Freedom Trail and ends with hot chocolate and Boston cream pie at the Omni Parker House. Through January 31, 617-357-8300, thefreedomtrail.org.

Haul Out the Holly. From “The Twelve Gays of Christmas” to “Little Drummer Boy,” the Boston Gay Men’s Chorus presents a fun and festive affair for families of all kinds. December 15, 20–22. Jordan Hall, New England Conservatory, 30 Gainsborough St., 617-542-SING, bgmc.org.

Christmas Revels. Celebrate the winter solstice at this 43rd annual event that takes audiences on a journey to Galacia in northern Spain and features Spanish music, dancing and colorful stories. December 13–27, Sanders Theatre, 45 Quincy St., Cambridge, 617-496-2222, revels.org.

First Night. Ring in the new year with music from big-name acts including Patti Smith, the Blind Boys of Alabama, Dean Wareham, Donald Harrison and Gentleman Hall. There will also be fireworks, a parade, art cars and more. December 31, 1 p.m.–midnight, firstnightboston.org.