Slemmestad Geology Centre was built up with assistance from the Palaeontological Museum and opened in 1994.
Fossils, species of rock and minerals from the surrounding area are arranged in display cases. A model illustrates the bedrock in Slemmestad and the neighbourhood. The timescales and terms that are used in geology are described on wallcharts. In addition, the Centre has a considerable collection of books and maps.
The Geology Centre is intended to provide information to everyone who is interested in geology - school classes, the local population, tourists and the many amateur and professional geologists that visit Røyken each year. The former "Sack Factory" in Slemmestad houses the Geology Centre, the Cement Museum and the Public Library.
Brochures that give more information about the many interesting geological walks in the area may be purchased in the library.