Green loop (20km and 25km bike routes): Op Buuren is a 21st-century residential area built from 2007 on the grounds of a former quinine factory. Eight architects designed op Buuren inspired by historical architectural styles in the surrounding area. Each house shows its own style and there is variation between the neighborhoods. The architectural style of Op Buuren is classified as retro architecture.
Red loop (22km and 25km bike routes): Maarssen has a number of beautiful country estates. We cycle through the fields around Vechtenstein . This is now a public park. After crossing the Vecht we arrive in the old village center. Again along the Vecht there is an estate on both sides: Bolenstein and on the opposite side Doornburg .