Largest harbour port below sea level
- Who
- Turkmenbashi International Sea Port
- What
- 1,358,484 square metre(s)
- Where
- Turkmenistan (Turkmenbashi)
- When
- 02 May 2018
The largest harbour port below sea level measures 1,358,484 m² (14,622,599 ft² 73 in²) and was achieved by Turkmenbashi International Sea Port (Turkmenistan) in Turkmenbashi, Turkmenistan, as verified on 2 May 2018.
The sea port is part of the modern silky road project.