Michelle Obama Extends Her Hawaii Vacation HONOLULU - When President Obama departed Hawaii Saturday evening he left behind one notable thing - his wife, Michelle. Mrs. Obama will be staying on Oahu for several days to spend time with friends in advance of her upcoming 50th birthday. The extended visit to the Obamas" annual tropical getaway is part of the president's birthday gift to his wife, who turns 50 on Jan. 17. On Saturday, before he left, Mr. and Mrs. Obama also went on a brief, 15-minute hike on the Na Pohaku O Hauwahine trail, before the president hit the golf course for a final time. Mr. Obama's daughters, Sasha and Malia, joined him on the Air Force One to return to Washington. The girls are scheduled to return school on Monday.