Built in 1896, the original Kaslo Hotel was considered very grand for its time. Kaslo was a bustling community of 5,000 residents with gold, silver, and lead mining. The community had a brewery and several saloons. Over the years, the busy mining and logging industries declined, as did the population of Kaslo. The hotel fell into disrepair and closed in the 1920’s, and was then acquired by the village for non-payment of taxes. It was utilized from 1942 to 1945 as accommodation for Japanese-Canadian internees being relocated from Western British Columbia. At one point, about 200 individuals, including many children, were housed in the deteriorated structure. The hotel burned and was razed in 1950.
A new Kaslo Hotel was constructed and opened in 1958 on the original site overlooking Kootenay Lake. It operated continuously, changing its name to the Mariner Hotel in 1981. The hotel was closed for extensive renovation in 2006, and opened again to guests in early 2009 as the Kaslo Hotel. In 2022, Stellar Heli Skiing purchased the property and have since completed extensive renovations to the restaurant, and continue to upgrade the facility.