I always use El Mar Services, you can open an account and if you book in advance you get 10% off. DONT USE RESORTHOPPA. My friend was travelling from the airport to only Los Cristianos and she was told the bus would be leaving and she quickly got on there and she was left sitting there for an hour and then the journey which only takes 10 minutes in a taxi, took her 1 hour 10 minutes. Yes it's cheap but no service. Had she known she was going to be sitting there all that time and the time it took to get to our apartment, she would have just got a taxi.