Lake Powell On the Arizona/Utah border, in the midst of a vast desert, Lake Powell is an oasis of water-based recreation. Host Kara Tsuboi finds the best way to beat the heat is with a wakeboarding lesson and a boat trip up one of the lake's twisted fingers to reach the beautiful Rainbow Bridge Monument. A horseback journey through dusty Paria Canyon harkens back to the open range of the Old West, and a fantastic striped bass dinner is served aboard a luxury houseboat rental.