Piton de la Fournaise, a shield volcano on Réunion Island, is a major attraction for hikers and geology enthusiasts. Accessibility varies depending on recent volcanic activity; check conditions before visiting. Solo exploration is possible for experienced hikers, but guided tours offer deeper insights into the volcanic landscape and safety guidance. Seasonal restrictions may apply during periods of high volcanic activity or adverse weather. Entry to the volcano area is generally free, but guided tours can range from €30 to €60. A typical visit, including hiking to viewpoints, can last 3 to 6 hours. Be prepared for changing weather conditions and bring appropriate hiking gear, including sturdy shoes, water, and sun protection.