As the larger of New Zealand's two main islands, the South Island encompasses incredible landscapes – from rainforests to snow-capped mountains, golden beaches and stunning glaciers. Many consider this the home of adventure tourism, and adrenalin junkies will be spoilt for choice, with activities that include bungee jumping, kayaking and the six "Great Walks". Although far less populated than its northern counterpart, the South Island boasts a number of towns and cities worth putting on your itinerary. Visit Christchurch, a vibrant urban centre known for its beautiful parks and gardens. Pass through Dunedin to encounter penguins, albatross and seal colonies, or stop by Kaikoura for some of the best whale watching in the world.