Planning a 3 week trip to the North Island next year, hoping to book flights soon. Key purpose is to visit for DF's 80th - haven't been out there for c 15 years & it will be DS age 13's first visit so keen to nail the planning. We will fly in & out of Auckland, assume spend 2-3 days there to sightsee & acclimatise to the time zone etc. Wondered about side trip to Coromandel &/or Rotorua on way to Napier, where DF lives. We are not drivers so all internal travel will be by bus/plane. Would appreciate any tips & itinerary/accommodation suggestions, particularly in Auckland & Rotorua. Assume it will still be reasonably warm in early April. Thanks in advance for any help 