The Suelina River is a stream located between the northern part of Sopot and southern Poland, and ends in the Baltic Sea. It is one of the most beautiful natural areas in the city of Sopot, where its water is characterized by its sweetness and purity, and it continues to flow throughout the year, so you will see the sides of the river in a state of permanent green, surrounded by huge trees and forests that grew from the abundance of water in that area.