Hiking video our family did in December 2023. We had to leave my dad half way up, the hike is challenging for those of limited mobility. You need good footwear and plenty of water. I'm not sure how long it took us, but I'd allow about 1-3 hours depending on how mobile you are and my advice would be get there early as the car park gets very busy.
From Wikipedia: Roque Nublo (Clouded Rock, Rock in the Clouds) is a volcanic rock on the island of Gran Canaria, Canary Islands, Spain. It is 80 m (262 ft) tall, and its top is 1,813 m (5,948 ft) above sea level. The Roque Nublo is the third highest point on the island of Gran Canaria, after the Morro de la Agujereada at 1,956 metres, and the Pico de las Nieves at 1,949 metres. It was formed by a volcanic eruption around 4.5 million years ago.
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