Hello, One day I will go to Salto Limon- I can't tell you about it other than that it can be muddy with rainfall, and you can rent horses for the trip to the falls. I have heard it is a HEALTHY walk and many recommend horseback. I guess for me Samana is about being on the ocean- probably why I have nevr gone inland to the falls.
For me, Samana Peninsula is about tranquility. You will find that at beaches Fronton, Madama and Rincon. My advice is rent a boat for around $65-85 at Playa Las Galeras to take you to Playa Madama and Fronton. Fronton is the most amazing beach, with hardly ever anybody else there. You can find interesting stones and coral, and the snorkeling is reasonably good there, but BE CAREFUL not to venture too close to where the boat enters to come in to Fronton, as there can sometimes be a STRONG current. When we were there we saw whales, but far offshore. On the way back (you pass on the way to fronton also) you will pass Playa Madama. This is a beautiful beach as well, much smaller than Fronton. Your boat guide should be able to open a coconut or 2 for you to drink. There is a small cave that your guide should know close by that you can explore if you bring a light. On the way back you will pass El Cabito
El Cabito, a restaurant hanging over the cliff. Go there for dinner one night. You should call for reservations one day in advance. With (cheap) wine dinner may be around 30-35 per person, but is worth it. They cook in a furgon, or wood fired stove. You can tell by taste of food. You will wait for your food. We waited once 2 hours, but the beauty of the setting makes it worth it. Get there early so you can see the sunset- at least 30 minutes before sunset. The road there is dismal and looong drive to get there. If you or your car do not like bumpy roads, then eat at Lusitania, which is located right at the turn for El Cabito near Las Galeras beach.
The road going to Rincon (I recommend going to Fronton/Madama before Rincon) used be 4WD only, but just recently has been fixed a bit so that a regular car can get there. There is an interesting, clear freshwater river on one side that you should take a look at. This is where the local Dominican's hang out, so on weekends, don't be surprised if there is loud music. On the other side of the beach is an ok restaurant, and where tourists who have come by boat go. You can eat there and lounge on the beach. On the way to Rincon on the right side is an Iguana Conservation project. I stopped for the first time about 2 weeks ago. The guide was anything but knowledgeable, (I aksed how long iguanas live- a good, long time was the response.), but worth it to see the iguanas.
There is a little beach La Playita very close to Las Galeras that you can ask about. It is hard to find w/o help. There is a fairly good restaurant, and nice chairs for lounging. You can also snorkel and rent kayaks there. They have snorkel gear for rent.
Cayo Levantado was not my favorite place- VERY touristy- but did have a nice beach and good for relaxing with others. I went once, thought it was sorta bleak. Not what you go to Samana for, at least not what I go to Samana for.
With good binocs you can see whales from a bluff, but you go to Samana to get up close and personal. Spend money to do it right. Book a whale tour with Kim Beddall's boat:
Whale Samana Reservations Kim is a whale expert. I went in a small fishing boat, and although I could imagine better what an adventure the whalers must have had, I was wet, a bit cold, and wishing that our guide was a professional. Go in a big boat, preferably Kim Beddall's. Think it is around $65.
Seeing the whales and going to Samana, you need to spend a bit of money. Do a bit of a splurge and you won't regret it. I do not know about hotels as I have always stayed in one place which is more on the expensive side.