 By 1937 official state publications were referring to the park as " Presque Isle State Park " , and that same year it led the state park system with 1 @.@ 4 million visitors . In the 1950s the peninsula was enlarged to accommodate new roads and parking , using 3 million square yards ( 2 @,@ 500 @,@ 000 m2 ) of sand dredged from the interior of the peninsula . The resulting basin became the current marina . Other new facilities included three modern bath houses built in 1957 . That same year Gull Point ( at the eastern end of the peninsula ) was named a nature preserve by the state . 
