When reading Rick Steves' book on Spain, he advises buying tickets a few days in advance of your bus trip. If you arrive in town by bus and plan to leave by bus, he advises getting your departure ticket when you arrive at the bus station. From this I gather that one doesn't need much advance time to get a seat on a bus -- say, one or two days. Do you feel this is accurate? I have explored some of the bus websites such as www.movella.es and can see the schedule and price for the buses I will need. I could book ahead on line, but is this necessary?
Bus two trips I am planning for Spain trip, May 2019 are: Granada to Tarifa [via Algeciras] and Tarifa to Sevilla
What is your experience in buying bus tickets in Spain? I'd appreciate any advice you can give. Thanks!