Translation of biogas in German

All travel agents, but one, were all pritty unreliable as one could perceive immediately. We did not care for a dollar more or less and everybody promised the same which was not convincing.
The bus driver drove so quickly and with extremely dangerous maneuvers. We were so afraid and the other passengers started to scream at the driver which did not help the situation at all.
The road was a really horrible, but the lakes and the surrounding woods were colorful and impressive. We drove for two hours through the forest towards San Martin de los Andes, but decided to turn back before it got dark.