There is a very efficient public transport system on the island, run by the Tiadhe bus company.
Their website is https://tiadhe.com/en/our-routes/ and on that page you can see the bus routes. If you click on the Ver Horario link it will give you the bus timetables and the cost of the journey. You can also translate the page to English.
Most routes leave and return to the bus station in the capital, Puerto del Rosario.
On all island bus routes you can buy a new credit card size discount card(Bono) from the bus driver. It costs 2 euros and you can buy 10 euros minimum of credit for it. Further multiples of 5 euros can be added to it, up to a maximum of 50 euros. This card gives 5% discount on all bus journeys.
In Caleta there is a bus station just off the main road near the Castillo roundabout, and a stop at the Atlantico Commercial Centre. The buses that use these stops are the Numbers 3, 10 and 16.
It’s possible to have a full day out around the island:
I was interested to see how much of the island could be visited in one day by using the bus service.