Here's some info to start with:
Tokyo, enjoying a long
history of prosperity as Japan’s capital since 1603, and with a population of
about 13 million, has grown into the largest of the 47 prefectures of Japan
and one of the more advanced metropolises in the world. The city focuses on everything from
politics to business, from economy to cultural heritage, thus ascertaining
itself as a world traveler destination.
Scenic Geography
Even
though, known for its urban sprawl and close quarters, Tokyo has treasured its natural
beauty hidden throughout its cityscape. The presence of several parks, mountain
ranges and bodies of water run through the area, and due to Japan’s cultural
and ecological preservation efforts, one can still find traces of pre-urban
Tokyo in its natural state.
For
an outdoor traveler, Lake Okutama, the largest lake in Tokyo, running through both Tokyo and Yamanashi
Prefectures, and the Tama River, provide an amazing scenic
beauty. And though Tokyo doesn't have many caves, the most famous one is called the Nippara Limestone Cave, lying on the northwestern point of
Tokyo, the largest cave in the Kanto region, taking up to 40 minutes to
walk through the area. Here, one can find various stone religious sculptures and
various ema, or written prayer plaques, from Shinto supplicants.