A bit after passing Yakuo-in Temple if you take trail number 1 up Mount Takao you'll finally get to the peak of the mountain, just like in Encouragement of Climb.
Image from S1E09 - 00m20s
Path between Yakuo-in Temple and the peak.
Image from S1E09 - 00m21s
This place is right before you get to the peak.
Image from S1E09 - 00m25s
At the peak there's various eating places and a visitors center.
Image from S1E09 - 00m26s
And there's also an observation deck.
Image from S1E09 - 00m27s
On a clear day you can view Mount Fuji from here. It was covered in clouds when I was here though.
Image from S1E09 - 00m37s
The height marker that's seen in the anime has been removed and replaced with a different one.
Image from S1E09 - 00m38s
The pavilion where Aoi and Hinata sits down to eat is still the same.
Image from S1E09 - 00m52s
There were people sitting here all the time so I couldn't get many shots.
Image from S1E09 - 00m57s
Inner roof of the pavilion.
No location map since it's just the peak of Mount Takao.
This location was visited on 2016/10/06.