Tickets to Quito are under $600. I am thinking of going to Guayaquil from there, surfing Montanita for a few days, then getting back to Quito, and trekking Andes for a few days near Chimborazo. Probably in July or August. The question is how to commute between Quito and the coast. From what I read, driving a rental is not a good option. Any experiences or advice?