Bus fares and stops

We are holiday in Aguadulce this month and intend to use buses to get around as there is a bus stop near where we are staying (Hotel Playadulce). Do the buses have information signs showing the next stop (proxima parada) as they do in Tenerife or do I have to ask the driver to tell us? We will probably only be travelling to Almeria bus station in that direction but might want to go to and fro between different parts of Roquetas de Mar. If anyone can advise what the fares are likely to be it would be helpful as well.

Thanks in advance

Ivan