August 23, 2011 (MARTHA'S VINEYARD) President Barack Obama is taking advantage of idyllic summer weather at Martha's Vineyard to go bike-riding with his family.           

Under clear, sunny skies, Obama and his wife, Michelle, and daughters Malia and Sasha were driven a short distance from their rented home to nearby Manuel F. Correllus state forest for the bike outing.            

The family then went to a beach in Edgartown for lunch.           

The White House says Obama has also received a briefing on Hurricane Irene.