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Ancient oceans

1. Coelacanth

2. Plesiosaur

3. Panthalassa

4. Duntroon

5. Trilobites

Deep blue culture

1. Hokusai

2. The Orca

3. Seaquest DSV

4. The Rime of the Ancient Mariner by Samuel Taylor Coleridge

5. Seals

6. P. Sherman, 42 Wallaby Way, Sydney

7. USS Indianapolis

8. Moby Dick by Herman Melville

Nautical numbers

1. 46

2. 10.5km

3. 400 degrees Celsius

4. 3.6 metric tonnes

5. Oarfish

6. 3000

7. 10%

8. The Dead Sea

Sea creatures

1. Echinoderms

2. Sea lions

3. Melon

4. Tardigrades

5. Leatherback

6. Galapagos

7. Seahorses

8. Bull shark

Davy Jones’s general knowledge

1. Self-contained underwater breathing apparatus

2. The bends

3. The 12 Apostles

4. Sunlit, Twilight, Dark, Abyssal, Hadal

5. Red Sea

6. El Niño