• 1 · Religion and Magic
• 2 · Nature
• 3 · Human Being, Man in General
• 4 · Society, Civilization, Culture
• 5 · Abstract Ideas and Concepts
• 6 · History
• 7 · Bible
• 8 · Literature
• 9 · Classical Mythology and Ancient History

• Top
• 2 · Nature
• 25 · earth, world as celestial body
• 25H · landscapes
• 25H2 · landscapes with waters, waterscapes, seascapes (in the temperate zone)
• 25H23 · sea (seascape)

25H231 · phenomena connected with the sea

• 25H2311 · wave
• 25H2312 · tide
• 25H2314 · currents
• 25H2315 · deep sea