You are Professor Newton Skylar. You have been miniaturised and must survive the hazards of the rocky shore, shifting dunes and sandy beach.
Before the main challenge, try and control the waves! Can you handle the wind, tides and exposure in order to become a master of the sea?
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Move on to the next stage and find out what you need to know in order to explore life on the edge.
The very deepest spot on Earth, called Challenger Deep lies within the Mariana Trench, one of the many deep valleys of the Pacific Ocean. At 35,802ft (11,034m) below the surface, the water pressure there is an incredible 8 tons per square inch.