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Isseki Misaki
Yonnaguni Town, Okinawa 907-1801, Japan
Max Depth: 91-100ft/28-30m
Average Viz: 111-120ft/34-37m
Entry Type: Boat
Bottom Composition: Rock
Aquatic Life: Big Animals
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Spring: 71-75°F/22-24°C
Summer: 81-85°F/27-29°C
Fall: 76-80°F/24-27°C
Winter: 66-70°F/19-21°C
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Isseki Misaki is a boat accessible salt water dive site, located in Yonnaguni Town, Okinawa 907-1801, Japan. The maximum depth is 91-100ft/28-30m. The average visibility is 111-120ft/34-37m. This dive site provides bathrooms and airfills.
http://en.wikipedia.org/wiki/Yonaguni_Monument
The Monument consists of medium to very fine
sandstones and
mudstones of the
Lower Miocene Yaeyama Group believed to have been deposited about 20 million years ago.
[1] Most of the formations are connected to the underlying rock mass (as opposed to being assembled out of freestanding rocks).
![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Turtleyonaguni.jpg/220px-Turtleyonaguni.jpg)
![](http://bits.wikimedia.org/static-1.21wmf8/skins/common/images/magnify-clip.png)
The formation called "The Turtle"
The main feature (the "Monument" proper) is a rectangular formation
measuring about 150 by 40 m (490 by 130 ft) and about 27 m (90 ft) tall;
the top is about 5 m (16 ft) below sea level.
[5]Some of its details are said to be:
- two closely spaced pillars which rise to within eight feet of the surface;
- a 5 m (16 ft) wide ledge that encircles the base of the formation on three sides;
- a stone column about 7 m (23 ft) tall;
- a straight wall 10 m (33 ft) long;
- an isolated boulder resting on a low platform;
- a low star-shaped platform;
- a triangular depression with two large holes at its edge;
- an L-shaped rock.