In Norway, nature is very much an active pursuit, and Norwegians' passion for exploring their natural world has created one of Europe's most exciting and varied adventure-tourism destinations. Some activities may only be for the young, energetic and fearless, but most – such as world-class hiking, cycling and white-water rafting in summer; dog-sledding, skiing and snowmobiling in winter – can be enjoyed by anyone of reasonable fitness. On our travels we've encountered 93-year-old snowmobilers and whole families racing down rapids. Whether you're here in summer when the possibilities seem endless, or in winter for the soul-stirring spectacle of the northern lights, these activities are an exhilarating means of getting close to nature.