In New Zealand, bus transport is the most common form of public transportation. Some smaller cities have little or no public transport so people rely on cars, taxis, cycling and walking. Auckland and Wellington both have suburban rail systems for public use. Ferries as well are used by locals to get around, albeit not as frequently. There is also a ferry on the Cook Strait, between the two main islands. Bus and train fares usually range from about $1 to around $10 (NZ eg Auckland) depending on where and when you are traveling and the length of your journey. There may be discounts for students and senior citizens. Short ferry fares (such as to the bays around Auckland) can range in price from about $4 to $8 one way.