When someone tells me that he has been to Nikko, I immediately ask if he also went to Senjogahara. And much more often than not the answer will be no. This always shocks me so much, that I want to hit this rather pitiful person with my tripod to wake him up and send him back to Nikko.
Senjogahara, a 4 square kilometer marshland located just behind Ryuzu Falls, is simply amazing and I am psyched every time I go there.
So stay ducked down; after all it's the battlefield of the gods!