From Paihia, take SH11 north out of town and follow until you reach Puketona junction where SH10 meets SH11 (about 11km). Turn right. Follow SH10 until the roundabout (about 7km). Turn left, following signs to the airport. Skydive Bay of Islands is about 200m after the Coast Guard HQ and 300m before the main airport turning. The building is clearly signed.