You must be thinking about las Ruinas La Isabela.Beautiful scenery and beaches. A very laid back and relaxing atmosphere.
There is a great dominican beach restaurant at La Isabella. Very rustic,but, excellent food.
I have been in that area several times and always enjoyed it.
Villa Isabela and La Isabela are one and the same.You must be thinking of Villa Isabela and not La Isabela which has the ruins and a beautiful beach.