Using scented essential oils is very popular in saunas. Most commonly, a few drops of oil are added to the sauna water bucket. When water is ladled over the sauna stones, the steam gives off a pleasant fragrance. By far the most common scented essence is eucalyptus. Lavender is also a very pleasant and popular scent for aromatherapy. Others may include pine, birch, citrus, and peppermint.