I will be in the DR from March 9th-18th and will be arriving in Santo Domingo. I am interested in traveling to Semana to go whale watching and am wondering what the best method of transportation is from Santo Domingo to Semana. I speak Spanish so communication is not an issue. I do not wish to fly due to the cost. How many days do I need to dedicate if I wish to go there and is there a bus transport that will take me there? If so, how long is the bus trip and in what part of Santo Domingo am I able to catch the bus? Thanks, any and all info is much appreciated.