Area is generally around Fujiyoshida, Yamanashi, Japan, nothing secretive. Many ways to access, it literally is a forest, the suicide forest.
No bodies were found this, or subsequent trips - but that usually happens late summer, wouldn't be the first time I found a body
To access, you will need a car, you can find a bus to some tourist sites, e.g. My Fuji 5 lakes, but the tour operators will notice you missing. You can rent a car easily in Japan if you have an IDP for about $20-25/day, no reservation needed usually.
The sign is kinda famous, even in Japan among those people that like supernatural or this sort of thing - this is urbex, but that's another fun circle I'd love to go on about sometime.
命は親から頂いた大切なも ;の
もう一度静かに両親や兄 弟、
子供のことを考えてみ& #12414;しょう。
一人で悩まずま 12378;相談して下さい。
連絡先 富士吉田警察署 自殺防止連絡会 22-0110
Hotel where you can book so you can do excurions, I didn't do this route but decided to camp, it was quite chilly in Feb, about 28F.
Bonus:
This is ICe Cave, it's a "tourist attraction" used for WW2 stockpiling, the JP Military was worried about bombs by the allies and kept many things there - now it's considered a "natural refrigerator." This was also a source for ice before mainstream ice/fridges were common. Even today in South East Asia (well, East Asia too for China, but not so much in Japan) Ice is still sold in blocks because not every home has a fridge.