The Twin City Rapid Transit Company (TCRT), which owned and operated the system, announced in 1905 that it had plans to construct a grand amusement park on 65 acres (26 hectares) of land that it had purchased on Lake Minnetonka's Big Island.
The announcement was part of TCRT's master plan to attract tourists and excursionists to the edge of the system on summer weekends, when ridership was typically low.
TCRT also built six Express Boats that could provide limited service to Big Island Park in addition to serving commuters around Lake Minnetonka.
TCRT commissioned LeRoy Buffington, a prominent local architect, to design Big Island Park's structures in the Mission Revival style of architecture.
Due to excessive operating costs and lack of revenue during the off-season, TCRT closed Big Island Park in August 1911 and abandoned the property shortly thereafter.