Roque de los Muchachos is a mountain peak located on the island of La Palma in the Canary Islands, Spain. At 2,426 meters (7,959 feet) above sea level, it is the highest point on the island and one of the highest in the archipelago.

The Roque de los Muchachos is known for its observatory, which is one of the most important in the world. The observatory takes advantage of the high altitude, clear skies, and low light pollution to study the universe. The location was chosen because of its exceptional astronomical seeing conditions, which make it ideal for both optical and infrared observations. It has over a dozen telescopes, including the largest single-aperture optical telescope in the world, the Gran Telescopio Canarias.

In addition to the observatory, the Roque de los Muchachos is also a popular destination for tourists and hikers. There are several hiking trails that lead to the summit, where visitors can enjoy panoramic views of the island and surrounding sea. The landscape is unique and breathtaking, with a mixture of volcanic rock, pine forests, and small meadows. The Roque de los Muchachos is also home to a variety of endemic plant and animal species.

The summit of the Roque de los Muchachos is accessible by car, but there are restrictions on the number of vehicles allowed, so it is advisable to book in advance. The access road is steep and winding, and drivers should be comfortable with driving on mountain roads. Visitors should also be prepared for a significant temperature drop at the summit, as it is much cooler than the surrounding areas. Warm clothing is recommended, even in the summer months.