Đa Lat is home to the manmade, 5 km² Xuan Huong Lake. The average temperature is 17°C, and does not exceed 25°C in the hottest season. Early mornings, the city arises to mystic fog over the lake. Its temperate climate is ideal for agricultural production. Đa Lat is renowned for its orchids, roses, vegetables and fruits. There is a nascent wine-making and flower growing industry in the region.