Cartagena, Spain: Cartagena, located on the southeastern coast of Spain, is a coastal city with a rich maritime heritage. Explore its history at the Roman Theatre or the Naval Museum. Enjoy the Mediterranean atmosphere while strolling along the picturesque promenade. Take a boat tour of Cartagena's bay to appreciate its scenic beauty from the water. Art enthusiasts can admire the city's modernist architecture and visit the Isaac Peral Submarine, a museum dedicated to naval innovation. The city also offers beautiful beaches where you can relax and soak up the sun.