Indonesia is scattered over both sides of the Equator in which ,Bali is one of more than 17,000+ islands in the Indonesian archipelago and is located just over 2 kilometers (almost 1.5 miles) from the eastern tip of the island of Java and west of the island of Lombok. The island, home to about 4 million people, is approximately 144 kilometers (90 mi.) from east to west and 80 kilometers (50 mi.) north to south. The island is surrounded by coral reefs. Beaches in the south tend to have white sand while those in the north and west have black sand.

The largest Islands are Java, Sumatra (shared with Brunei and Malaysia), New Guinea (shared with Papua New Guinea), and Sulawesi. Indonesia shares land borders with Malaysia on Borneo, Papua New Guinea on the island of New Guinea,  Indonesia shares maritime borders across narrow straits with Singapore, Malaysia, the Philippines, and Palau to the north, and with Australia to the south. The capital, Jakarta, is on Java and is the nation’s largest city, followed by Surabaya, Bandung, Medan, and Semarang.