Kronstadt is a city of Russian naval glory. Situated ~20 km from St. Petersburg, it’s a nice place for a 1-day trip.
The city of Kronstadt lays on the island of Kotlin in the Gulf of Finland of the Baltic Sea. The island is not so big. The length of the island is about 12 km, the maximum width is less than 3 km, the area is about 16 square kilometres.