There are very few taxi cabs on the island.  Renting a car is a viable option but plan on have a sober driver if doing clubbing. 

 To give an indication of the taxi rate it cost

3.25 euro pre charge to take a taxi at the taxi rank, a pre booking cost 1,20€

0.9 € price per kilomter during the day 1,20€ during the night 

Airport supplement 1,65€

Hourly waiting supplement 18 euros

supplement occur on bank holiday