Borders

There are nine crossing points between North and South Cyprus but if you intend to use a particular crossing, you'd be wise to check it's open before making your journey, just to make sure. West to east, these are the names of the Cyprus border crossings:
Yesilirmak (Limnitis/Kato Pyrgos) near Guzelyurt (Morpho)
Lefke (Lefka)
Bostanci/Guzelyurt (Astromeritis)
Metehan (Agios Dometios)
Ledra Palace - Official cars only
Ledra Street - Pedestrains
Beyarmudu (Dhekelia) – SBA crossing
Akyar (Strovilia/Agios Nikolaos) - SBA crossing
Dherynia (Famagusta/Gazimagusa)
Border crossings are quite well signed in the north if you want to go south, but not so well in the south if you want to go north. Names above are Turkish names, those in brackets Greek. These two names aren't necessarily the same place, but the names of the nearest village or town on each side of the border, as there's often a short drive between the two.
Crossing points are mainly designed for cars, but there is one pedestrian-only crossing point in the capital Lefkosa known as Ledra Street. It's possible to walk through some crossing points if you're being collected by a car or taxi on the other side (for example Metehan ) but note some crossing points are rural with limited facilities on either side and some crossing points have a long distance between them so walking isn't allowed (for example, Yesilirmak ). All crossing points are open 24/7 but if you need to buy car insurance, you should use Metehan which offers 24-hour car insurance service. The other border crossings tend to offer car insurance services only in-office hours. You'll need your passport as well as the car documents, insurance and driving licence if you're taking a car across.
The most used crossing is Metehan which is about 20-minutes drive from Kyrenia. The Sovereign Base Area (SBA) British Army crossing point of Beyarmudu is actually nearer to Larnaca Airport but the journey to Kyrenia is longer, so it tends to be used for those visiting East Coast locations of Iskele or Famagusta. If you fly via Paphos, you'd be better to use Metehan as well. Lefke and Yesilirmak may look closer, but they're mainly used by locals, involve mountainous roads and are not really suitable for first-time visitors or new tourists, particularly at night. You can use sat nav or google maps or Waze to find the Cyprus border crossings but once through reset your device to your final destination. If you're a first time visitor to North Cyprus and arriving at night in the South, take a taxi over the border and hire a car in the north. This gives you fully comp insurance plus breakdown cover and stops you getting lost in the dark. You might also want to book that pickup in advance with a North Cyprus company rather than an airport taxi as many Greek Cypriot taxi drivers won't know the way on the north side.