Crystalline Passage + Ancients Way + Glacial Trail
The direction in all Ice Caves is "LEFT" to get towards the next area.
In the direction "Straight" there will be a cave. In case of the Crystalline Passage you will want to go there for hell speedruns (Quest 4).
In the direction "Right" you will find the waypoint. Except on the Glacial Trail, where you will find a golden chest with a boss group.
The waypoint of the Glacial Trail is in the same direction as the entrance. It can be between entrance and exit or on the other side of the entrance.
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Here you will see all the tiles that are of interest:
Entrance Tile (top right):
Exit Tile (bottom right):
WP Tile (top left):
Cave Tile (bottom left):
Entrance Tile (top left):
Exit Tile (top right):
WP Tile (bottom left):
Cave Tile (bottom right):
Entrance Tile (bottom left):
Exit Tile (top left):
WP Tile (bottom right):
Cave Tile (top right):
Entrance Tile (bottom right):
Exit Tile (bottom left):
WP Tile (top right):
Cave Tile (top left):
As mentioned you will find something else instead of the waypoint towards the "Right" in the Glacial Trail.
Here the tiles:
Special Tile (top left):
Special Tile (top right):
Special Tile (bottom right):
Special Tile (bottom left):