Miyajima! I wanted to take my teenager children to Hiroshima to learn about an important event in Japan and world history. After that sobering day, we spent the next one in Miyajima. We were wowed by how different the shrine look at low and high tide. We all fell in love with the friendly and curious deer inhabitants. The street stalls are fun to browse through. The oyster-serving restaurant we ate at was great. Next time we will definitely stay here at least for one night and experience the island in the evening!
One of my travel favorites is the Niji No Sato. It is a 50-hectare theme park in the Izu Peninsula. It will make you feel like you have traveled outside Japan without leaving the country. It has several themed villages -- Canadian Village, British Village, Japanese Village, etc. -- and the entire place is just a paradise for me. A great avenue to relax your stressed mind.