雲海

1. Origins, structure, and basic meaning

• Structure: 雲海 is read うんかい. It means a sea of clouds viewed spreading below a high vantage point.
• Basic usage: It describes clouds tinted by the morning sun and a magnificent layer covering a valley.

2. Common pitfalls and similar expressions

• Clouds colored by sunlight
  • 朝日に染まる雲海 is a sea of clouds tinted by the morning sun.
• Covering a valley
  • 谷を覆う見事な雲海 describes a magnificent sea of clouds covering the valley.