Oyg seems to have mapped this area twice - once as the vast ocean (as shown here) and a second tmie with the name "the ocean of doom" spiral :)

+-------------------------------+
|                               |
| +---------------------+ | | | | | | | + | |
| | /| | |
| | + | | |
| | The Flood v | | |
| | (The Ark) 4 | | |
| | | | |
| +----------------+ | | | | |
+--------------------------+ | | +----+ j | | ^ +----+----+ i-<--d | | | h-<--g----+----h-->-g Port 1----a | | | f-<--e----f-->-e b-<--c----b-->-c | | +----+----+---------+----+ | | | | | | Jade 3----+----+----+---------+----+ +-------------------+ River / | | | | | | 2 +----+---------j----+----+ +----+
New Atlantis | v | | |\ | 5 i-<--+ | + \___________ | HTOS v | | \ | a | +----+----+----+----+ + | | | | | | / +--------------+----+----+ +----+----+----+ / | | | | / i +----+----+ +----+----+-----+ v | / d + +----+---+ | + | +----+----+ / 6 Vast Ocean (Part 2)

 1 = Port {5-35}
2 = New Atlantis {all}
3 = Jade River {all}
4 = The Flood - above deck on the ark {20-50}
5 = High Tower of Sorcery {70-99}
6 = The Vast Ocean (part 2) {20-100}

Key to Mystic Adventure ASCII Maps