Yes, it is possible to reach the top of Saint-Michel d'Aiguilhe. Visitors can climb the 268 steps carved into the volcanic rock to access the chapel. While the ascent may be challenging due to the steep climb, it is manageable for most people, and the views from the top are considered well worth the effort. The chapel is a popular destination for both tourists and pilgrims, offering a unique blend of natural beauty, history, and spirituality.