Glossary · The ocean
Challenger Deep
The deepest known point in the ocean, in the Mariana Trench in the western Pacific, close to 11,000 metres down. The bottom of every Icillion dive.
In Icillion
In Icillion this is part of the dive itself, from the tip of the iceberg to the bottom of the trench. How to play
Related terms
How deep does your knowledge go?
Seven prompts a day, twenty seconds each. Obvious answers float on the tip of the iceberg; rare ones sink all the way to the trench.
▼ Start today’s iceberg ▼