Cooper is a beautiful spot. However the swells can trick you. It can be flat for hours and then you ROLL. Lasts a period of time and then pretty calm again. It's not dangerous, but is very uncomfortable, especially when the rolling starts around bedtime. Fortunately, there are no breaking waves at the mooring field. The rolling is even more uncomfortable when the wind and swells are from different directions.

Warren S/V Scuba Doo
Lagoon 50 (winner of best crewed yacht under 55 feet at the St. Thomas crewed yacht boat show).

https://www.cyabrochure.com/ebn/2307/pdyrX/6642/4///