From Rivas take a taxi or the bus directly to San Juan del Sur. It is about a 1 hour ride. "Colectivo" taxis cost 35 cordobas per person, no matter how full the taxi is. However, that means the driver might try to fill up the taxi before leaving. Taxi drivers are honest as to whether it is a colectivo or not. The easiest place to find taxis from Rivas is from the bus terminal.
In Rivas, there are buses south to the Costa Rican border, and north to Managua.
