This happened on one of the Gulf Islands in the Pacific Northwest. It was a comfortable summer day, the sun was shining. A number of young people were gathering at a property for a campout / concert party, with blankets and sleeping bags on a field. It was an exercise in freedom, similar in feeling to the Burning Man festival, but on a smaller scale. I recall the group playing folk music, it was a jam session so anyone could join in if they wanted to.
In the evening there was a wine and cheese party at the main house. Women were dressed in formal evening dresses - men in suits. Wine, champagne, plates of appetizers. Air of amicable friendship. There were stone stairs and walkway leading back down to the field between patios on either side of the walkway. The patios were terraced. There was a pond on either side of the walkway at the "middle" level of the terraced patios. I recall standing near the ponds, and seeing cattails and lily pads. It was a fine summer evening, I was talking to someone. A refined woman in a long black dress.
The next day was the same as the day before. I was with my sons - the women seemed more scantily-clad than the day before. It was a bit uncomfortable because some of the couples were "hooking up" (kissing) but my sons were also there. I thought it was a bit rude of them to do this in front of children, but they didn't seem to care.