Austin, the state's capital, is located on the Colorado River at the edge of the rugged Texas hill country. Austin offers a variety of outdoor activities. Swimming, boating and water skiing are popular at many of the local area lakes. Excellent running and biking trails are available within the city's extensive park system. Opportunities for hiking, camping, and rock climbing are available at the local state parks. The city also offers a variety of restaurants, movie theaters and clubs. The popular (and famous) 6th street is filled with live music, bars and restaurants. Austin is considered by many to be "the live music capital of the world." Austin has a thriving symphony, ballet, and opera. Austin is home to a booming high-tech industry, a great university, and the nation's largest urban bat colony.