Havn't been there but, as a Canadian (i.e. cricket =
?) in Georgetown, Guyana, which is also hosting part of the CWC, I can tell you that the Commonwealth Caribbean is going to be a zoo during this period - right through to the final in Barbados at the end of April. Lots of parties, lots of Rum etc.
I would say forget about getting any work done at any time during this period. (This includes work on the boat - nobody is going to focus on anything useful)
Worth going to I'm told. I was recommended to buy tickets beforehand as (these same cricket fans) tell me this is the most watched sporting event after world cup soccer... You should be able to get the tickets online...