The ruins at nearby Cancuén. There is a minivan that leaves with some regularity for La Union. There was evidence of at least one passenger pickup still doing that route as well in February, 2007. For the minivan, coming from El Amigo, turn left and walk a bit past the small downtown and look and ask for the minivan. To arrange the boat ride get off at the tienda next to the Cancuen sign and look for someone to help you. Do NOT walk down to the embarcadero unless you have time to kill before aranging the ride.