Sant Joan de Caselles Church is a stunning example of Andorran Romanesque architecture, easily accessible by car or local bus just outside Canillo, with nearby parking. While visitors can explore solo, note that the church is often locked, and the key typically needs to be collected from the Canillo Tourist Office or a designated local residence, a crucial tip for planning your visit. There is generally no entrance fee, making it a cost-effective cultural stop. It is usually open year-round, but specific hours and key collection points should be verified with the tourist office, especially during off-peak seasons. A typical visit duration is short, around 15-30 minutes, allowing ample time to appreciate its Lombard bell tower and unique interior carvings. Its picturesque setting and historical significance make it a rewarding brief stop for history and art enthusiasts.