Natural Wonders of Okayama, Japan: Okayama Prefecture boasts a diverse landscape ranging from serene mountains and tranquil gardens to sparkling beaches and lush forests. Here are some of the best nature spots to explore: Mountains & Hiking: Mount Washu: This iconic peak offers breathtaking panoramic views of the Seto Inland Sea and surrounding mountain ranges. Challenging hiking trails cater to experienced adventurers. Kibiji Mountain Range: Explore a network of trails leading through ancient forests, cascading waterfalls, and scenic lookout points.