S.D. Codified Laws § 9-38-24
The board may establish, improve, care for, regulate, and manage a system of public parks, parkways, and boulevards and with the approval of the governing body may acquire land for such purposes. The board may regulate the planting and trimming of trees and shrubbery in such areas and may establish the channel of any stream or watercourse forming a part of the park system and improve the banks of the stream or watercourse. The board may provide parkways and boulevards for the streets and maintain and regulate the care of the parkways and boulevards. The board may cause the cost of construction and maintenance of the street parkways and boulevards to be assessed against the abutting property as provided in chapter 9-43. The board may establish, maintain, and conduct with or without charge or grant concessions for places of public amusement, recreation, or refreshment within or in connection with such parks. No concession lease or grant may be made for longer than three years, and no professional shows or exhibitions for which an admission price is charged may be given in such parks. However, a lease or grant to a concession may be made by the board for a period not to exceed fifty years if the concession requires a realty improvement or capital investment or any combination thereof of at least fifty thousand dollars.
SDCL 9-38-24