noun
autumn leaf-viewing party
A social gathering, often organized by a company or group, to enjoy the autumn foliage. Common in Japan during the fall season.
会社の観楓会で京都の紅葉を見に行った。
I went to see the autumn leaves in Kyoto for the company's leaf-viewing party.
Compound of 観 (viewing), 楓 (maple/autumn leaves), and 会 (gathering/party).