A vacationing French family of five jumped off a seaside cliff in a desperate attempt to escape a raging wildfire, with the father and one of his children plummeting some 165 feet to their deaths, Flames forced the family and about 150 other tourists out of their cars on Sunday night as most were returning home to France, and the group scrambled down hillsides toward the beach in the border town of Portbou to escape the blaze.