Maybe you're the type of person who loves to plan every tiny detail of your trip. Or perhaps you prefer to pick up a rental car and play it by ear. Whatever your style, there are some basic facts about Grand Cayman that no one should leave home without.Grand Cayman is an island in the country of Cayman Islands. Its shimmering shorelines and fresh salty breezes are calling your name!At last count, the island was home to around 52,600 people.