This isn't just the set for the corny, 1996 movie, Bio-Dome. This is one of the world's most fascinating facilities dedicated to, "The research and understanding of global scientific issues" ...
Summer, despite being the desert, this will be the least expensive time to travel and you will encounter fewer tourists.
The Rock of Gibraltar is a monolithic limestone promontory in the UK-controlled territory of Gibraltar located off the southwestern tip of Europe on the Iberian Peninsula reaching 426 m high.
During the day, leaving time for ample exploring. Consider going in off seasons if your schedule allows to avoid excessive crowds