Rise through the hydrothermal vents. Up and up.

Vents
0
Depth
0 m
Best
0
BUBBLE JET
Move mouse or drag finger. The bubble follows your lead upward.
Move mouse or drag finger to rise
POPPED
Vents0
Move mouse or drag finger to rise
o
Rise
Move cursor or finger to guide the bubble.
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Vents
Pass between hydrothermal vent columns.
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Current
Thermal current nudges the bubble sideways.
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Depth
Track how high through the water column you rise.