The Coast Guard split the island's operations among seven divisions, and began making various improvements such as adding a boat marina and the world's first search-and-rescue training school. By 1972, the Coast Guard had opened some apartment blocks on the southern portion of Governors Island, which replaced the temporary World War II-era buildings on that site. The golf course and open space in the center of the island were preserved during this wave of development. Liggett Hall was converted to classrooms, and other historic structures were preserved and restored. A community of Coast Guard members began to develop on the island, and it came to include a fire and police department, banks, stores, churches, an elementary school, a movie theater, a motel, and even a bowling alley and a Burger King.