Samaná Zipline is located in the mountains between Samaná and El Valle in the north coast of the Dominican Republic. You do not need to be a sports pro to do it at all, a little bit of bravery might help, though. We did it many times with children age 4 and above.
We are regularly asked if there were deep-sea fishing opportunities in Las Terrenas. Yes, there are! Whereas we have nobody fishing in the family, hence no personal experience, we hear that Sport Fishing Charters Las Terrenas does a good job.