RCMP Nadon is a Commissioner-class high-speed patrol vessel previously operated by the Royal Canadian Mounted Police's Marine Division.

The vessel, designed by Robert Allan Ltd. and built by Shore Boat Builders, is an aluminium-hulled 17.7-metre (58 ft) planing catamaran, capable of speeds of up to 36 knots (67 km/h; 41 mph).

The voyage began at Vancouver on 1 July 2000, and involved navigating the Northwest Passage around the northern coast of Canada as far as Halifax.

[4] The St. Roch II then continued down the eastern seaboard of the U.S., across the Caribbean to transit the Panama Canal before returning to Vancouver in December.

The voyage was a joint project of the RCMP and the Vancouver Marine Museum to raise funds to help maintain and preserve the original St.