One of New Zealand's premier destinations for adventure, one is never short of fresh air in the Ruapehu region. Tongariro National Park is a highlight and aside from tramping in summer and snow sports in winter, the Tongariro Alpine Crossing is considered one of the best day-long hikes in the world. If mountain-biking and kayaking sounds more up your alley, you can take these down the mountain at National Park Village and Ohakune.