Lotus Isle Amusement Park was an amusement park that operated from 1930 to 1932 on Tomahawk Island in Portland, Oregon. Known as the "Wonderland of the Pacific Northwest", Lotus Isle was located just east of the more successful Jantzen Beach amusement park. Lotus Isle spread out over 128 acres (0.52 km2) and at the time was Portland's largest amusement park.