it on qualifying vacations** and Double Membership Rewards points*" through American Express Travel In Acapulco, Cancun, Cozumel, Huatulco, lictapa-Zhuatanejo, Mexico City, Los Cabos, Mazatlan, Puerto Vallarta or Riviera Maya. 'Valid on new vacation package bookings through 8/31/06 for travel through 12/