Visit Maromo Restaurant, or drive up to Camp David Ranch(El Generalisimo),or to Caffeto in the mountains near Santiago. Go to the Gran Almirante Casino. They have a nice club downstairs.
If you want a moro chopo ambient go to Ambis Disco, just outside the city on Duarte Highway. They have good music and good dancers.
On your way to Santiago, veer off to Jarabacoa only 15 minutes from Duarte highway and just drive around the nice mountain scenery. Buy some "arepa" by the Bayacanes river. Have a cup of coffee or natural juice "batido" at Alpes Dominicanos restaurant, visit the Salto de Jimenoa bearby.
If your friend is catholic and very religious, stop by Santo Cerro near La Vega. Only problem is the beggars. But it is a typical mountain town.
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