PHOTO/JAMES LANTHIER JR. A motorboat manned by Tupper Lake firefighter Joe Cormier (from left), Saranac Lake firefighter Rick Hurteau and Saranac Lake Dive Capt. Kenneth McLaughlin crosses Big Tupper Lake to rescue two teens whose rowboat got hung up on ice. "The lakes are starting to break up," Hurteau said. "The ice is floating." The motorboat had to weave around floes to reach the boys; their rowboat was left marooned on the ice.