Tenerife buses are operated by TITSA. It is one of the oldest transport companies in Europe, dating back to 1884.
TITSA buses are very comfortable and reliable. This is probably the most suitable (and certainly the cheapest) way of transportation, but only if you are moving from one major city to another.
To get to small villages or attractions, you need to carefully and accurately plan your trip, taking into account the bus schedule.
You can find all information and timetables on TITSA website titsa.com
Not the cheapest, but the most pleasurable way of getting around.
If you are in a city, even a small one, there will probably be a taxi rank somewhere in the central square or bus station. But don't expect taxis to wait there all night. As soon as the main rush hour passes, the taxi drivers will head home. Only in a few big cities taxis are available all night.
Also, don't expect to catch a car on some remote road late at night. Even during the day they are rare there.
If you've visited a remote restaurant, ask the waiter to call a taxi for you.
A tip of 10-20% is very welcome and will be gratefully appreciated.
The most confident drivers use this way of getting around Tenerife. Of course, this is the most convenient way for those who know how to ride on a mountain serpentine and do not like alcohol too much.
Spain has strict drink driving laws, only allowing 0.5 mg of alcohol per millilitre of blood - stricter than the UK where the limit is 0.8. New drivers are effectively forbidden to drink and drive, with a very low 0.1 mg/ml limit.
Spanish regulations state that a minimum fine of 1000€ will be payable by drivers caught whilst twice over the drink-drive limit, and/or in all cases for re-offending drink drivers, and/or all drivers found under the influence of drugs.