With the Obama daughters now on Martha's Vineyard, President Obama and his family spent the morning enjoying a bike ride through the Manuel F. Correllus State Forest. Daughters Sasha and Malia Obama, who had been at summer camp, arrived on the Island Thursday. The family will continue vacationing on Martha's Vineyard through Sunday. This is the fourth time President Obama has vacationed on the Vineyard since taking office. So far, their vacation has consisted of mostly familiar activities, including outings to local restaurants and the golf course, as well as a family bike ride.