Our group was very small. If it had been bigger, I probably would have had a big event before the wedding.
The way it worked for us was that a lot of the people were at different resorts too, so it was very difficult to see them.
Before we left we arranged a few things. We said that on one day we'd be at a certain restaurant for lunch and whoever wanted to join, was welcome. One couple came by earlier that day to see us and joined us, and Dh's parents, but no one else came.
Wednesday we said we'd be doing a day trip to Xcaret. My sister came with us from our hotel and we were supposed to meet another couple, but that didn't happen. No one else came. Everyone did their own thing.
I was frustrated that people didn't show for the thigns we'd planned, but I guess they all had their own things going on and as long as they were happy, I'm happy.
2 of my best friends who came (my only best friends who came) didn't come to anything. They didn't even come to the early day of the wedding to where we were all getting ready (my sisters were my bm's). I was stunned. But it was their holiday and they did their own thing.
So I guess by all means, plan one or two things, but don't exhaust yourself worrying. Plan ahead and if you need to, introduce them to others they may like, but ultimately they can do their own thing.
Good luck!