Union Island is an island and a city in the Grenadines, which is a group of islands located in the Caribbean Sea. It is part of the nation of Saint Vincent and the Grenadines. The city is known for its beautiful beaches, clear turquoise waters, and vibrant marine life, making it a popular destination for snorkeling and diving enthusiasts. Union Island also has a small airport, called the Union Island Airport, which serves as a gateway for tourists visiting the Grenadines. The city offers a range of accommodations, restaurants, and shops to cater to visitors.