I will be traveling to Barbados next month with my family of 5 (myself, husband,and 3 teenage boys). Rediscover Barbados sounds very tempting but I am wondering if it is a voucher that I purchase for only one meal? Can you use it multiple times and then just pay the price for the 3 course meal? Do I need to purchase for my sons as well? Does everyone in the party have to order off of that menu?