Washington (CNN) -- While the first lady and daughters Malia and Sasha were away this weekend, President Barack Obama has been enjoying what some have jokingly referred to as a bachelor's weekend with friends -- golfing, playing basketball and grilling out on the South Lawn.
The festivities are all part of a belated birthday celebration of sorts for the president, who turned 49 on Wednesday.
First lady Michelle Obama and youngest daughter Sasha, 9, were on vacation in Spain, while 12-year-old Malia is attending camp.
Friends from Hawaii, Chicago, Illinois, and college joined the president on Saturday at Andrews Air Force Base for a round of golf.
The sports outings continued Sunday with a basketball game at Fort McNair where Obama -- along with such NBA stars as LeBron James, Dwayne Wade, Grant Hill and Earvin "Magic" Johnson -- played in front of an audience of wounded servicemen and participants in the White House mentoring program.
Obama was scheduled to return to the White House Sunday evening with friends and some of the basketball players for a seafood barbecue on the South Lawn.
Workers were seen setting up grills on the lawn Sunday morning in preparation for the party. Tables set up with white and yellow linens and adorned with centerpieces of lemons and limes dotted the lawn.
The menu is expected to include shrimp from the Gulf Coast, where the seafood industry has been hard hit by the BP oil disaster, according to White House aide Katie Hogan.
CNN's Jonathan Helman contributed to this report.