NEW : The three tourists have walked to shore after their ice floe drifted back toward land . A rescue plane dropped survival kits onto the 3Â½-square-mile frozen sheet Tuesday , after the expedition alerted authorities to their plight . NEW : Helicopters are standing by to take them to a hospital . The group was stranded on a chunk of ice in the Canadian Arctic . The tourists , including two Americans , received air - dropped survival kits that included rafts .
NEW : The three tourists have walked to shore after their ice floe drifted back toward land . NEW : Helicopters are standing by to take them to a hospital . The group was stranded on a chunk of ice in the Canadian Arctic . The tourists , including two Americans , received air - dropped survival kits that included rafts .