Instituto Salvadoreño de Turismo (ISTU) is the authoritative body dedicated to promoting and managing tourism in El Salvador. The institution aims to enhance the visitor experience by offering a range of services and programs that showcase the country’s natural beauty and cultural heritage. ISTU oversees various recreational parks and organizes engaging events, such as the annual "EXPO ISTU," entrepreneurial fairs, and cultural activities like modern dance showcases.

Among their services, ISTU provides scheduled adventures, including scenic bus trips to iconic destinations like the Izalco and Santa Ana volcanoes. Their initiative, "Buses Alegres," encourages community participation and accessibility to tourism for all. The institute also prioritizes transparency and public engagement through its Portal de Transparencia, ensuring open communication with citizens. Located in San Salvador, ISTU facilitates visitor inquiries and offers assistance via phone and email, making it a cornerstone for both locals and tourists seeking to explore the delights of El Salvador.