$700000 - 
$700001 - Special OW Flag (>0x80 = ON)
$70006F - Submap (00 = Große OW; 01 = Yoshi's Island; 02 = Bowsers Valley; 03 = Vanilla Dome; 04 = Special World; 05 = Forrest of Illusion; 06 = Star Road)
$700075 - X-Position
$700076 - X-Position * 0xFF?
$700077 - Y-Position
$700078 - Y-Position * 0xFF?
$70008C - Exits