Park Island was the destination of launch and excursion boats where passengers were unloaded to spend the day at the amusement park. At the Park Island landing, passengers disembarked beneath its arches for "amusements and dancing." Behind the arches was the building that housed the penny arcade and souvenir booths. The building above the landing housed the carousel. A penny arcade allowed one to play a video-type game for a penny, except in 1915, one had to crank it by hand. Many buildings were adorned with decorative elements characteristic to Park Island, such as the truncated pillars on the rooftop that are strung with hundreds of lights for illumination at night. The Orion Light and Power Company, established in 1901 by John Winter and Dr. O. Lau, initially furnished electricity for the resort and village.
In 1912, it was purchased by the Detroit Edison Company under which name it remained in operation until the 1950s. Visitors on Park Island could mill between buildings and booths and find activities of their choice. In the style of an open-air market, an aisle of booths was used for various games and souvenir shops in the 1920s. There were also refreshment booths, lunch stands, and a dining room on Park Island. Japanese Rolling Ball was a very popular game. When asked about recollections of Park Island, most people recall playing this game and the type of prizes they won. Marie Shoup, village resident, described the game as rolling billiard-sized balls into certain holes for a cumulative score with which one would win prizes that varied from Kewpie dolls to fine pieces of china. Women residing in Lake Orion could acquire many pieces of china this way, and sometimes a complete set! The Thriller roller coaster was another of the main attractions on Park Island. It was located at the southwest corner of the island and towered above the trees.
Former resident Barbara Wilson-Benetti recalls, "When the cars hit the long drops, the metallic rattle of the acceleration carried across the water quite plainly, like a keg of nails being poured down a brick chute; and along with it came the high-pitched screams of the girls. These came out as one sound, a long 'R-r-r-r' as the car fell and simultaneously a high 'E-e-e-e' trailing out behind like a ribbon." A footbridge ran from the back side of Park Island near the Thriller to the current location of Algene Street on the mainland. Algene Street is named after Al and Geneva Dacey, who lived on this street in the 1920s through the 1950s. A dance pavilion was one of Park Island's most enduring attractions and attracted major bands such as Butler's Band from Detroit and Logan's Lansing Orchestra.
Over the years, three dance pavilions were built on the island. After the first was destroyed by fire, it was replaced by a second, more elaborate pavilion with 5,000 square feet of floor space. On the Fourth of July weekend in 1936, the second dance pavilion burned to the ground in one afternoon. It was said that it burned so fast the band did not get their instruments out. The dance pavilion was again rebuilt, and it continued to attract major bands into the 1940s. The $12,000 carousel was purchased by John Winter for the Park Island Amusement Park in 1915. Some of the beautifully crafted horses had real horsehair for tails and moved up and down as the carousel rotated. Toward the center of the carousel were carriages in which people could also ride and benches where the less adventurous could sit. Vincent Borelli, standing in the center, ran the carousel. He was Italian and allowed only Italian opera music to be played for the carousel's operation.
The swimming beach located on the north side of Park Island had both a men's and ladies' bathhouse in addition to a two-story observatory. It also had a large L-shaped dock with several diving boards and platforms. The highest of these at the very end of the dock was 42 feet, and lifeguards would put on diving exhibitions late in the afternoons. The carousel was housed in the building seen in the background. The Park Island beach boasted the largest waterslide in Michigan located next to the ladies' bathhouse. Bathing suits could be rented from the bathhouse. At night, Park Island became an illuminated park. It was strung with thousands of lights, and it was said that "the myriad lights transform the islands and shores into a veritable fairyland." Firework displays exploding against the dark sky were a frequent nighttime event over the lake. The origin of Lake Orion's name is purportedly taken from the night sky. In 1911, J. A. Treat reported that his father, while an Orion postmaster, suggested the name of Orion "because it was short, handy to write, and 'altogether lovely,' it being the finest constellation in the heavens." Prior to this name change, Orion had also been called Dogway due to a quantity of mongrels in the business district.
There were at least three summer cottages on Park Island when the island became an amusement park, and they were used to house employees of the park. A cottage on Park Island was high on a bluff with a sizable boathouse and dock at the water level. A two-story cottage had a wraparound porch on both levels to enhance the vista of the lake. The wraparound porch was a common architectural feature of the early Lake Orion cottages. In the 1930s, due primarily to the Depression, Park Island as an amusement park descended into steep decline. The rides and most of the buildings were being torn down. A toboggan slide was made of lumber from the old Thriller roller coaster. It was erected on the north side of the island in the late 1930s. The toboggan run shot toboggans down onto the ice where they would glide almost to Green's Park in the village. Winter activities on Park Island in the 1940s were sport car races and skating races on the ice. Livingston "Bud" Schaar, a late village resident, recalled ice-skating around Lake Orion as "big time" when the whole lake was an open skating rink. By 1955, his brother Stid Schaar's bar on Park Island was about the only active establishment and was destroyed by fire that summer. In 1964, Bill Davis purchased Park Island and replaced the wooden bridge with a concrete bridge. He then developed the island with lakefront homes.