- Oceans: Their History, Water, Layers and Depth
- Seas and Oceans: Definitions, Features and the Main Ones
- Physical Features of the Ocean Floor: Trenches, Vents, Mountains
- Islands: Types, How They Form, Features and Nations
- Large Waves: Rouge Waves, Meteotsunamis and the Biggest Waves Ever
- Ocean Currents: Forces, Concepts, Types, Maps
- Ocean Predators, Fish Feeding and the Marine Food Chain
- Ocean Life: Species, Biodiversity, Oldest and Most Numerous
- World's Oldest Life Forms: Stromatolites, Algae and Thrombolites
- Cambrian Explosion and the World's Oldest Animals
- Dinosaur-Era and Pre-Dinosaur-Era Sea Creatures
- Plankton: Plant, Animal, Copepods, Neuston and Mucous-Mesh Grazers
- Deep Sea Life: in the Deepest Trenches, Around Vents, New Species
- Deep Sea Fish: Strangest, Deepest and Ugliest
- Bioluminescence in the Sea: Why, How and Creatures That Use It
- Seaweed: Food, Health, Farming and Climate Change
- Studying Ocean Life: Tagging, Telemetry, Censuses and TOPP
- Survivors at Sea: Adrift for Months, Alone in a Raft and 480 Meters Underwater
- Discovering the Croatian Coast: A Beginner's Guide to Yacht Renting
