Russia and Iran share this...........

Caspian Sea - Wikipedia

https://en.wikipedia.org › wiki › Caspian_Sea

The Caspian Sea is the world's largest inland body of water, variously classed as the world's largest lake or a full-fledged sea. It is an endorheic basin (a basin ...

Basin countries‎: ‎Azerbaijan, Iran, Kazakhstan, ...

Average depth‎: ‎211 m (690 ft)

Water volume‎: ‎78,200 km³ (18,800 cu mi)

Islands‎: ‎26+

‎Volga–Don Canal · ‎Stenka Razin · ‎Aktau · ‎Hyrcania