In 2012, I reached the summit of Mt. Fuji, Japan's tallest mountain. It was one of the highlights of my stay here in Japan, though I don't have any plan to climb it again. However, I had plans of visiting the five lakes surrounding Mt. Fuji. Luckily, there was an available Fujigoko (Fuji five lakes) photo tour. at the start of the year.
The Fuji Five Lakes (富士五湖, Fujigoko) were formed hundreds of years ago by lava flows which dammed up rivers during Mount Fuji's multiple eruptions. more here