Mary Alexander, of Martinez, rubs the belly of her dog Bailey, a 7-year old Cocker and Tibetan terrier mix, as the two take shelter from the sun under the
Mary Alexander, of Martinez, rubs the belly of her dog Bailey, a 7-year old Cocker and Tibetan terrier mix, as the two take shelter from the sun under the shade of a large tree at Martinez Regional Shoreline in Martinez on, Sept. 6, 2013. Bay Area residents are preparing for a heat wave this weekend. (Jose Carlos Fajardo/Staff)