The merry-go-round in Ross Park, a public park in Binghamton, New York, was first installed in 1920

Question:

The merry-go-round in Ross Park, a public park in Binghamton, New York, was first installed in 1920 and has been periodically refurbished by the city in the years since. There is no entry fee to visit the park or to ride the merry-go-round. Is the merry-go-round a public good? Briefly explain.