Kyrenia (Κερύνεια, also Girne in Turkish) is in Northern Cyprus.
A picturesque port with a population of just 22,000, Kyrenia is the most popular tourist destination in Northern Cyprus.
Atlas air, Cyprus Turkish airlines fly to North Cyprus Ercan airport. Also if you fly to Larnaca airport you can cross the borders to stay free in North Cyprus Kyrenia.
Frequent ferry services operated by Fergün Shipping connect Kyrenia to Alanya (3½ hours, costing 78 TL/person one-way) and Taşucu (costing 60-68 TL/person one-way according to the fastness of the ferry) in Turkey.
The best way to explore Kyrenia is with a rental car as public transportation is not that good in the Kyrenia area. If you are staying in the central Kyrenia there are "Lapta Dolmuş" (busses) to go to the beaches in the west side of Kyrenia.
Public busses are available from Kyrenia to Nicosia (capital city) and Famagusta. If you are visiting Güzelyurt then Çimen Taxi (7 seater ) is availalbe, as you are sharing the cost it is cheap.
The official currency of North Cyprus is Turkish Lira, TL. All major currencies are easily exchanged and most shops do accept Euro, £ British Pound and $ US Dollar. But it is always better to carry some Turkish Lira for small shops in the villages.
There are many somewhat touristy restaurants by the harbor. Try typical turkish cuisine such as lahmacun, meze, turkish kebab and flat breads. There are many markets selling fresh fruit and vegetables, olives, cheeses, breads and meats. For a splurge, take an excursion to Bellapais in the hills above Kyrenia, which has many classy restaurants.
There is lots of bars available around the Kyrenia.