I know this is an old post but for more clarification for those wondering the same thing in the future. The La Romana express (only way to travel) bus stop is located near the Parque Enriquillo in Duarte. It is on the south end of the park (further away from 27 of Feb) but on the North side of China town. It is on the South west corner. PS the bus stop for Higuey is right there also. The La Romana bus stop also has a satellite stop in Sabana Larga on the south side of Las Americas across from the KFC restaurant, but normally around rush hours never has seats available due to filling up first near the park. (I learned the hard way had to sit on my backpack for the 1:45 min ride due to it being the last bus. Not fun) The bus will drop you off in La Romana really anywhere you want to go, but the last stop is Parke Central, just north of Jumbo. Enjoy your 180 ish peso ride.How can I get to la romana from SDQ W/o a taxi? Is there a guagua?