Lystigarður Akureyrar
There are several airlines flying directly to Akureyri which is the easiest way of visiting, but flying to the main airport Keflavík in the south of Iceland is also an option and then either take a flight from Reykjavík to Akureyri which takes about 40 minutes or drive/take a bus for aprox 4.5-6 hours along main road 1. More information here.