Ports
Very small

Naoetsu Ko🇯🇵

Niigata · Japan37.18°N · 138.25°E
Data: NGA World Port Index (2019) · not a substitute for current nautical charts.
📍 Naoetsu Ko 37.18°N · 138.25°E
Chart · NGA WPI
Size & capacity
Port size
Very small
Max vessel size
Large vessels
Mean tidal range
1 m
Depths (WPI class · approx)
Channel
~31–35 m
Anchorage
~6 m
Cargo pier
~27–31 m
Oil terminal
~42–46 m

This is a WPI depth class, not a precise sounding — use current nautical charts for maneuvering.

Entrance conditions:Other