The Isthmus of Kra is a narrow strip of land that connects the Malay Peninsula to mainland Southeast Asia. It has various synonyms that people use to refer to it, including Kra Peninsula, Kra Isthmus, and simply Kra. The word "isthmus" itself refers to a narrow piece of land that connects two larger land areas. The Isthmus of Kra is significant because it is the only land route for maritime trade between the Indian Ocean and the Pacific Ocean. It is also a popular tourist destination, known for its beautiful beaches and rich cultural heritage. Despite having different names, these synonyms all refer to the same geographical feature.