Calares del Mundo y de la Sima Natural Park Loop

No, this route is classified as difficult and requires very good fitness. It features significant elevation gain, including the challenging Puerto de Las Crucetas, a mountain pass with gradients between 7% and 10% over six kilometers. It's best suited for experienced road cyclists.

The primary highlight is the spectacular Nacimiento del Río Mundo Waterfall, where the Mundo River emerges from a cave. You'll also traverse the demanding Puerto de Las Crucetas, offering rewarding views, and enjoy the stunning natural landscapes of the Natural Park of Calares del Mundo y de la Sima.

The route primarily consists of paved surfaces through mountainous terrain. Expect demanding climbs and descents, particularly on the mountain passes. The overall elevation gain is substantial, making it a challenging ride.

The route can be enjoyed in various seasons, but spring and autumn generally offer the most pleasant temperatures for cycling. After significant rainfall, you might witness the 'reventón' phenomenon at the Nacimiento del Río Mundo, a powerful burst of water from the spring, which is a spectacular sight.

While specific parking areas are not detailed, you would typically look for parking in the towns along the route, such as Riópar, Villaverde de Guadalimar, or Salobre, to begin your ride. Parking near the Nacimiento del Río Mundo Waterfall is also an option, though the asphalt road ends a short walk from the viewpoints.

Generally, there are no specific permits or entrance fees required to cycle this route or to access the Natural Park of Calares del Mundo y de la Sima. However, it's always good practice to check for any local regulations or temporary restrictions before your visit, especially concerning protected natural areas.

This route is designed for road cycling. While dogs are generally allowed in the Natural Park of Calares del Mundo y de la Sima, bringing a dog on a demanding road cycling route of this nature is not typically recommended for their safety or comfort. If you plan to visit the waterfall area on foot, dogs are usually permitted on a leash.

Yes, public fountains are available at various points along the route, which can be useful for refilling water bottles. The towns of Villaverde de Guadalimar, Salobre, and Riópar offer amenities such as cafes, restaurants, and accommodation options.

Yes, this route briefly crosses or runs parallel to sections of other paths. Notably, it intersects with parts of the Sendero Calar del Mundo and the Sendero Casa de la Noguera-Puerto del Arenal, among others, though these are typically hiking trails.

Given the route's difficulty and length, you should pack essentials like sufficient water and nutrition, repair kit, spare tubes, appropriate cycling attire for varying weather conditions, sun protection, and a first-aid kit. A GPS device with the route loaded is also highly recommended.

The 'reventón' is a unique and powerful burst of water from the Nacimiento del Río Mundo Waterfall. It typically occurs after heavy rainfall, especially during spring or late autumn, when the underground water system is saturated. It's not a constant occurrence but a spectacular event to witness if conditions are right.