coastal waters; inshore waters; sea along the coast
Refers to the sea area near the coast, often used in maritime, fishing, or environmental contexts.
We need to protect the fishery resources in coastal waters.
coast; coastal area
Refers to the coastal land or region itself, rather than the water. Often used in compound terms like 沿海地域 (coastal region).
In coastal areas, tsunami preparedness is important.
This fish lives in coastal waters.
They live in a coastal region.
Small boats often sail through coastal waters.