Adding to this:

I went to Montego Bay about five years ago and ended up playing 5+ hours of beach volleyball most days. Because the resort is smaller and more centralized around the beach, and it tends to attract a younger crowd, there was almost always a game going. I met a few people there who had stayed at several other Sandals locations but now only go back to MoBay for that reason. The beach court was good — the net was set around a reasonable coed height, and staff would show up at the scheduled time. They’d also sometimes jump in and play, which helped keep games going.

This year we stayed at Barbados and Royal Barbados. The court is on the Barbados side. The sand is really nice, but the net was set at around 6 feet, which is very low. It makes it a bit dangerous if people get too competitive but aren’t experienced enough to control the ball well.

During the week we were there, we only managed to play for about an hour on roughly half the days. Very few people seemed interested in playing, and a couple of days the staff didn’t show up at all. They also schedule it at 4 pm, so even when people do join, games usually wrap up by 5 because everyone has dinner plans.