they have buses but youll probably have to get off the highway 1 auto pista at piedra blanca , then get another bus to maimon , I believe there is a bus that goes that way, this friend of mine she lives that way , it goes up into Cotui. or you can get off the highway right there at piedra blanca and get a taxi to maimon , it shouldnt be that far , like 10 mins maybe 15 mins? cant be thaT EXSPENSIVE