Indonesia, a Southeast Asian nation made up of thousands of volcanic islands, is home to hundreds of ethnic groups speaking many different languages. It is known for beaches, volcanoes, Komodo dragons, jungles sheltering elephants, orangutans, and tigers. On the island of Java lies Indonesia's vibrant, sprawling capital, Jakarta, and the city of Yogyakarta, known for gamelan music and traditional puppetry. Throughout the country are destinations for surfing, scuba diving, and snorkeling, as well as trekking. There are temple ruins at Borobudur (Buddhist) and Prambanan (Hindu). Indonesia’s main religion is Islam, but the island of Bali has a predominantly Hindu tradition and a reputation for dance and performing arts, especially around the historic town of Ubud. Neighboring Lombok, with the active Gunung Rinjani volcano, is a gateway to the laid-back, traffic-free Gili Islands, renowned for scuba diving. Orangutans inhabit the rainforests of Sumatra, while Indonesia’s Komodo dragons live in Komodo National Park.