i hired a driver to take 5 adults to Ocho Rios - not sure if that is the same as Ochi? anyways - he took us to dunns river - then to a jerk stand, then shopping in mobay and then back to negril = $250 -9am to after 7pm.. i can give you the drivers # if interested.. driving yourself MAY be cheaper - but i feel safer with a local driver - and if you have even a small accident or trafic violation stop = renting a car might cost you well more..
just my opinion
jason