Kegon Falls is what most people who venture out of Nikko come to see, and it is truly an impressive sight to behold.
You can view it from the top for free, or take the elevator/lift to the lower observation deck for about 800 yen. Unfortunatly, there is no way to walk down and so have the same view for free.
And don't feed the monkeys!
Nikko is one of the most popular day trips out of Tokyo and takes just an hour and 55 mins from Asakusa station.
The town has been a sacred site since the 8th century and as such has many interesting sites for the visitor to see. The shrines are about as far removed from Zen beliefs as you can get, having every inch carved and covered in either gold leaf or lacquered paint. The results are sparkling.
This is one the four 'Gods' guarding the Rinnoji Taiyuin temple. The temples themselves have very ornate gates which are major attractions in their own right. Take the time to observe them and you won't be disappointed.
While wandering the temples in Nikko, keep your eyes peeled for the unexpected. I was lucky enough to be passing Toshogu Shrine when a wedding party was exiting. The traditional wedding costumes were stunning, and a highlight to our visit.