CROSS COUNTRY KAYAK—Jimmy Curnes, 23, Wheeling, W, Va., and John A. Davidson, 21, Carlisle, Pa. (right) paddle up Clearwater River in' north Idaho on coast-to-coast trip. They covered 484 miles in first 26 days, starting May 19 at Astoria, Ore. They’ll follow Columbia, Snake, Clearwater, Lochsa, Clark Fork rivers to Continental Divide, then Missouri, Mississippi, Ohio, Monongaheia and Potomac. _ ' (Associated Press Wirephoto) J