The country in Oceania made up of thousands of islands is Indonesia. This archipelagic nation consists of over 17,000 islands, making it the largest island country in the world. It features a diverse range of cultures, languages, and landscapes, from lush rainforests to volcanic mountains. Indonesia is renowned for its rich biodiversity, including unique flora and fauna found nowhere else. Its vibrant cities, cultural heritage, and stunning natural beauty attract millions of tourists each year, making it a significant player in regional and global tourism.