On a tour of the Great Garden in Hanover, it is one of the attractions for visitors: the Great Cascade. The grotto and cascade, built as massive sandstone shells, are part of the garden’s water features and were created by Marinus Cadart as part of the palace extension in 1685. Due to the constant dampness, the Great Cascade and the Grotto were endangered in their substance and had to be repaired frequently. The Great Cascade consists of four six-tiered watercourses, the individual basins of which are decorated with dripstone-like hangings and shells. In two of the five niches there are larger-than-life sculptures representing the figures of Venus and Leda.