Castillo de San Juan de los Terreros was built between 1760 and 1764, during the reign of Charles III of Spain, as a horseshoe-shaped artillery fort for coastal defense. Its initial design by Thomas de Warluzel d'Hostel, was later modified, improved and finalized in 1764 by Antonio Duce Oliveros.
Vufflens castle was built in 1425 on the site of a previous medieval castle by Henri de Colombier. It is the most significant example of a small group of fortified Romandy castles from the middle ages, characterised above all by its brick construction. In 1530, it was set on fire by Bernese troops. In 1641 it was acquired by the de Senarclens family. The castle is currently privately owned and cannot be visited.
A pleasant 30 minute-walk through the vineyards between Vufflens-le-Château and Denens, offers a stunning view of this magnificent castle, the lake and the Mont-Blanc.