Fly-fish in the virgin waters of the Chilean fjords, arriving by helicopter; navigate Alaska on a boat as luxurious as a four-star hotel but small enough to sail where the big cruise ships can't; embark on a private-jet tour to the great opera houses in Europe with behind-the-scenes passes: experience the classic links of the British Open. "Once in a Lifetime Trips "is a trove of ideas for travels that are unique, decadent, and off the beaten path...