There are more taxi services on the island but In the one that you get offered on a taxi rank, street or in front of the club you should never enter! We call it a black taxi! Its guys approching everyone for a ride, they will take and charge you double or even more and they can take al your belongings as well, so be very careful! The issue that island have is there are not enough taxis and tourists are desperate to come home in the middle of the night so they take it all the time. Stay focused, you been warned! You take only the legal white taxi with sign on! Hope it helps!