Adventure|noun|An exciting or unusual experience; a bold, usually risky undertaking
Coral reefs|noun|Underwater ecosystems characterized by reef-building corals; homes to many sea creatures
Whales|noun|A very large marine mammal with a streamlined hairless body, a horizontal tail fin, and a blowhole on top of the head for breathing
Dolphins|noun|Small-toothed cetaceans that are often known for their playful behavior
Treasure chest|noun|A box where valuable items are stored; often related to pirate stories and adventures