At another park, upstream from our house, there are two excellent swings which the kids love to play on, one new and one very old.
The old swing has a big diamond head, with the sculpted face of a friendly clown. The whole thing spins round and round, and the chairs swing out wider and wider the faster you go. These swings used to be quite common in Victoria when I was growing up. This one has been recently painted (and possibly serviced), but I’m sure it is at least 30 years old. It is great to lie down with your chest on the swing chair and pretend to be superman, flying through the air.
The new swing is the modern version, in the sense that they are very common, I know at least 6 parks with these swings. There is a big hoop suspended by 4 cables, with netting across the hoop to lie in or sit on. The angled steel beams provide some bounce and spring. I can see why these swings are popular, they are a simple design, overall pretty safe, and a lot of fun to swing on.