KAILUA, Hawaii—How President Barack Obama spent the fourth day of his Christmas vacation on Tuesday in Hawaii:

— GYM: Obama headed to Marine Corps Base Hawaii in Kaneohe for his usual morning workout, the second of his trip since arriving early Saturday.

— LOUNGING: Obama spent most of the morning and early afternoon with his family in their rented beachside vacation home in Kailua, a sleepy Honolulu suburb on the east side of Oahu. The family opened gifts Christmas morning, ate breakfast and sang carols.

— PHOTOS WITH MARINES: Obama and first lady Michelle Obama visited with Marines at Marine Corps Base Hawaii in Kaneohe, thanking hundreds of service members as they ate an early Christmas dinner. Obama gave a short speech, then took photos with individual service members and their families.

— DEPARTURE PLANNED: The White House said Obama would return to Washington, D.C., on a redeye flight Wednesday night, and that Michelle Obama and their daughters would remain in Hawaii.