Rainbow is an alpine ski field in Six Mile Basin, beside Nelson Lakes National Park. Its base is at 1,540 m; the lifts reach 1,760 m and the skiable terrain tops out at 1,820 m. With 218 m of lift-served vertical, this is a compact field with a local club feel, not a place for long high-speed descents. Go for a community-run snow day, the alpine setting and a mix of skiing and snow play. The usual season is roughly July to September, but snow, weather, safety and staffing decide whether it operates.