The 마리아나 제도 is a group of islands located in the western Pacific Ocean. It consists of 15 islands and is part of the 미국 territory known as the 북마리아나 제도. The largest island is 사이판, which serves as the main hub for tourism and commerce in the region. The islands are known for their stunning natural beauty, including pristine beaches and rich marine life. The 마리아나 해구, located nearby, is the deepest part of the world's oceans, making the area significant for scientific research and exploration.