The Owakudani volcanic area was created when Mt. Hakone erupted some 3,000 years ago. Today, there are a number of hot pools and steam vents that you can visit, made easy by a short walking trail, accessible from the Owakudani stop of the Hakone Ropeway cable car. Watch as the clouds of the volcanic gas erupt from craters in the ground—and don’t be put off by the sulfuric smell, which is often likened to rotten eggs! A local speciality you should try is the Owakudani eggs sold on-site—the blackened eggs are cooked in the mineral-rich water and it’s said eating a single egg will prolong your life by seven years.
After your visit, you can continue on to Lake Ashinoko and Hakone—a popular beauty spot with views over Mt. Fuji. The area offers plenty to do including hot springs, boat rides on the lake, the famous tori gates of the Hakone Shinto shrine, traditional hotels, restaurants, and more. The Hakone area makes a great day trip from Tokyo and there are regular guided tours to the area from the city to ensure you see all the important sites on your visit.