Irazú Volcano, Costa Rica's highest active volcano, offers breathtaking views of its vibrant main crater, sometimes filled with a green or yellow lake. Easily accessible by car or guided tour, visitors can drive close to the summit, followed by a short, paved walk to the viewpoints, though full wheelchair accessibility is limited. Solo visits are possible but require pre-booking entrance tickets online, while guided tours provide convenience and context. The park is open year-round, but morning visits during the dry season (December-April) offer the best chance for clear skies, as clouds often obscure views later in the day or during the rainy season. Entrance fees are approximately $15-20 USD for foreigners, plus parking. A typical visit to the summit and viewpoints lasts 1-2 hours. Due to the high altitude (over 11,000 feet), visitors should dress warmly in layers and be prepared for strong winds and thin air; sunscreen is also essential.