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| length | 125 feet |
| beam | 21 feet |
| propulsion | two reciprocating steam engines, circa 1907, 1914 |
Muskoka is a resort area, with many lakes and rivers. Early in the 20th century Muskoka was poorly served by roads. Vacationers were transported to lodges, or private cottages, via a fleet of steamships, including the Segwun.
Ports of call included Gravenhurst, Bracebridge, Port Sydney, Port Carling , Bala .
Most of these vessels were broken up or lost to fire, when roads were built. The Segwun, and the fleets former flagship, the RMS Sagamo, the last two remaining vessels in service, were retired in 1958, and spent decades moored at a dock in Gravenhurst. The Sagamo was destroyed in a fire in 1969. The Segwun, moored next to the Sagamo, survived the fire.
The Segwun was lovingly restored, and put back into service, in 1980. Segwun provides short sightseeing excursion, and dinner cruises. The Segwun is notable for being the oldest working vessel in North America to continue to use its original steam engine.
The Segwun's hull and engine formed the SS Nipising, a paddle-wheel vessel, that was in service on the lakes from 1887 through 1915. In 1924 Segwun was built around that hull and engine.