Fabulous photo. That is indeed May Hill.
Am I right in thinking that the Park that is on the inside of the corner is called Coronation Park? This would be built for the Coronation of which King? George V, (1910), or Edward V111, (1936), or George V1 (1937)? My guess is George V1.
I imagine that there will be a tablet as you walk around the Park.
I am sure that I have seen a photo of Eric Oliver, (E.S. Oliver sidecar TT winner), riding a solo Velocette in about 1938, where the newly opened park gets a mention.