* Join Big Bird, Elmo, Cookie Monster, Bert, Ernie and other Muppets at Sesame Street Live's "Big Bird's Sunny Day Camp Out," Friday at 10:30 and 7; Saturday at 10:30, 2:30 and 6:30; and Sunday at 1 and 4:30 at George Mason University's Patriot Center, 4400 University Dr., Fairfax. Tickets are $9.50 to $19.50 from Ticketmaster, 202/432-7328.
* Cathy Fink & Marcy Marxer hold their Holiday Family Concert, Saturday at 11 and 1:30 at the NOAA Auditorium, 1315 East-West Hwy., Silver Spring (Metro: Silver Spring). Tickets are $8 in advance, $10 at the door. Call 301/263-0600.
* The Washington Opera presents "Paquito's Christmas," a story about a little runaway's magical odyssey, Tuesday and Wednesday at 8 in the Kennedy Center Eisenhower Theater. The English-language production stars Dominic Domingo, Placido Domingo's 11-year-old grandson, along with Emmy Award-winning actress Marabina Jaimes and Roberto Alcaraz. Tickets are $15 to $35. Call 202/295-2400 or 202/467-4600 (TDD: 202/416-8524).
`Nutcracker' on Ice
The St. Petersburg State Ice Ballet presents "The Nutcracker" on ice on the Kennedy Center Opera House stage, Wednesday at 8, Thursday through Dec. 11 at 2 and 8, and Dec. 12 at 2. Tickets are $29 to $67. Call 202/467-4600 (TDD: 202/416-8524).
The Kennedy Center will give away tickets to the annual "Messiah" sing-along, Saturday at 10 in the Hall of Nations. There is a limit of two tickets per person. "The Messiah," with the Metropolitan Chorus conducted by Barry Hemphill, is Dec. 23 at 7:30 in the Concert Hall. The line for this ticket giveaway begins early and stretches outside the center. Call 202/467-4600 (TDD: 202/416-8524).
Dancers from Russia, the Netherlands, Germany, Korea and the United States will take part in the International Dance Improvisation Plus+ Festival, Friday and Saturday at 8 at the Marvin Theater, 800 21st St. NW (Metro: Foggy Bottom/GWU). Tickets are $12 from Ticketmaster, 202/432-7328 (service charges); for information, call 202/994-0739.