'Charming Harbor'; Ukrainian: Калос-Лімен; Russian: Калос Лимен) is an ancient Greek colony on the east coast of the Crimean Peninsula that existed from 4th to 1st centuries BC.

[1] The settlement is mentioned in the anonymous Periplus of the Euxine Sea [uk] as being located 700 stadions from Kerkinitis (modern-day Yevpatoria).

Based on the descriptions from the periplus, it was concluded that Kalos Limen was located on the coast of Tarkhankut Peninsula.

Fortifications of the city were strengthened in 3rd century BC due to Scythian and Sarmatian raids.

[2] In 1st century BC, the city was abandoned completely due to a Sarmatian invasion.