Chatham Island is around 97,000 acres in area, so you will definitely need some form of transport be able to get around all of the attractions. Rental vehicles are available for hire at Henga Rentals, Hotel Chatham Rentals and several of the accommodation providers also have rental vehicles for hire.
Chatham Island Tours specialise in guided tours and can get you to any of the local attractions.
Air Chathams have a 5-seater Cessna available for charter sight-seeing flights, around Chatham, Pitt and many of the outer islands. They also provide the only well as providing an air service between Chatham and Pitt Islands. Booking are required.
Owenga Charters offer transport to Pitt Island by boat.
There are many kilometres of public road on the Chathams and most of them are unsealed. Inexperienced drivers would be well advised to use the guided tours services to get around.