Photographs of the president-elect, shirtless, caused a sensation around the world because he seemed so physically fit.
Aides said Obama also spent much time conferring with advisers about the problems he will face as president, including the latest crisis in the Mideast and the sinking economy.
Obama was born in Honolulu in 1961 and spent 14 of his first 18 years there with his family.
After their 12-day vacation, Barack and Michelle Obama will move to Washington this weekend so their two daughters, Sasha and Malia, can start school next week. They will stay at a local hotel until January 15, when the Blair House, the traditional temporary residence of presidents-elect, is ready for them. Then, starting with his Inauguration Day of January 20, it's on to the White House.