Occidental Gran Flamenco is in the Playa Dorada complex of 14 hotels. To get to the main road where the Gua-guas & piblicos run, you will have a 10 minute walk (take it easy in the sun to start with!!). For Puerto Plata stay on the 'complex' side of the road, for Sosua & Cabarete go on to the far side of the road.
Ken is absolutely right with his info re "Have the right change" - these 'conductors??' never have change for foreigners!!!! DON'T need to take a guide into town, you can do it on your own & VERY safely!! It is NOT dangerous as most tour reps & guides at the gate try to indicate that it is!! If you know some Spanish words, so much the better - just keep smiling, be confident (as though you live here) HIDE that BL^^dy hotel wrist band (put a watch over it, cover it with your own, wider wrist band or find a way to take it off & then reconnect it when you get back to the hotel).
DON'T take more money than you are likely to need for the day, take off ALL expensive jewellery & look as destitute as possible. Then you won't get hassled by every guide in the area!! "No Huy Dinero" (I don't have any money) works a treat if said with sincerity & a smile!!!
Oh, by the way, ..... IF you got worried on the way in & want to get a taxi back, ...... get yourself a Techni-taxi to take you back to your hotel. They have a fixed rate from Puerto Plata (I THINK about RD $50), can now go into the complex to drop people off & they are much cheaper than the hotel taxis. Regrettably they are not allowed to pick-up from the hotels!!
Good luck & enjoy the hols!! - Grahame.