According to another legend, there was once a sea where the Dnieper River now flows. When Saint Andrew came to Kyiv and erected a cross on the place where the Saint Andrew's Church now stands, the sea went away. The only part that remained of the sea is under the mountain on which Kyiv sits today. When the church was built there in the 18th century, a spring opened under the altar. The church has no bells, because, according to the legend, when the first bell strikes, the water can revive again and flood the left bank of Kyiv.