Are you working with a particular trip provider? Almost any of them should be able to set this up for you. If you don't want to work with your hotel, a couple that are frequently reccommended here are Amigos Del Mar and Searious Adventures. I've often booked through the travel shop, Monkey Business, at Banana Beach and they've always accomodated any request I've had. If you aren't going until February, I'd say it's a bit early to be booking now, but the hunting and planning is fun!