Transport is fast, safe, and comfortable. All the main tourist attractions may be reached by road, and many by rail or air. All cities, and most major towns, are linked by air through an internal network, and smaller private airlines provide extensions to other areas. Widely varied coach tours are available, embracing holiday resorts and tourist centres. “Rental” (drive-yourself) cars are available throughout the country, and there are also good chauffeur-driven cars. Regular sightseeing drives are special features of most cities and resorts, with driver-guides to point out interesting places. A nightly inter-island steamer express links Wellington and Lyttelton (port of Christchurch), and a specially designed passenger and car ferry, which began in 1962, provides a daily return service between Wellington and Picton. A minimum of 10 days is required to see the best of New Zealand, although a stay of 14 days or longer is preferable.