The Hidden Shoal (隠し浅瀬, Kakushi Asase) is an area accessible from the Forest Pier.
The Hidden shoal is a light area covered in a shallow sea, embodied by viridian islands in odd swirling formations, with coral scattered throughout the area.
The islands form various swirls and shapes, one large group forming an Aztec-styled man.
Several featureless transparent people slowly wade the waters, destined to wander until time's unwinding.
This world highly resembles Pastel Shoal World from Yume Nikki, up to the point of having a saturated pink-striped pyramid deeper in the area.