What is the best way to travel from Disney's Caribbean Beach Resort to Universal Islands of Adventure?

I am traveling in June, and we plan to spend most of our time at Disney, but we are going to Universal for one day. I am trying to get an idea of cost for transportation between these. Thanks for your responses!|||I am pretty sure Mears Shuttles only go between the Hotels and the Airport. Your looking about a 40 dollar cab ride betwen the hotel and park.|||I would recommend Mears shuttles. You can book in advance and see their prices online, and they are cheaper than cabs.