Exploring Amagiso Onsen - Japan’s Most Beautiful Hot Spring

3-Hours from Tokyo, this beautiful waterfall hot spring paradise in Izu can be enjoyed for a mere ¥1000 ($7USD) entry price. Free Parking is available.
Heat up in the various onsens and then cool down by jumping in the river or swimming to the spectacular waterfall.
If you really want to sweat enjoy the wood-fired sauna tent that gets to a crazy 200 degrees Farenheit.
They even have a heated pool. They rent towels and swim suits if you need it too.
Make it an exciting day trip by going next door to the various restaurants including, wasabi soba which the IZU peninsula is famous for. And then walking the amazing Kawazu Seven waterfalls trail (free). There is even a zoo you can check out, and a bit of a drive away are some of Izu’s famous ocean beaches.