I can agree with just about everything that has been posted
And, for me, that is saying a lot.
I am going to suggest you look up, on the Search Function, a couple of posts by "sliverghost" and "Gray Ghost"..also look up DAMAJAGuA FALLS.
Between those two ("sliver and Gray" are the same person), I think you will fill a week or more of absolutely great fun.
Saman? is fabulous. It is one of my family's favorite spots. There is NOTHING more beautiful on God's Green Earth, especially when you venture just outside the city/town and go over to Las Galeras or Playa Rincon.....truly, you might not leave!
Saman? is about 3 to four hours from Puerto Plata (give or take) so you have to think 'overnight' at least. There are buses leaving early in the morning from Sos?a, and perhaps Puerto Plata.
1) Book anything here
2) You might think B&B rather than A/I, after all you will be out most of the day, so why pay for meals you won't be eating?
3) Talk to people like
(A) BushBaby, (B) Ken, (C) Escott or (D) Dawnwil, (E) Planner or (F) Chris as to what things to do or what options you might find at non-all-inclusives...Heck, with the support you will find here, you can just hop on a plane and land and you will already know where to go and what to do...Ditch the agent..
HB
P.S.
Listen to PAPA: Do that search! You will not be sorrry