A dance instruction ballroom & social school may have teachers that may specialize in dancing for weddings or other social dancing. Dance instruction ballroom & social schools may also teach dance as a form of exercise or to relieve stress. Some dance instruction ballroom & social schools may teach nightclub dances such as the Lindy, East Coast Swing, West Coast Swing and Salsa dancing. Dance instruction ballroom and social schools may teach more formal dances such as the Waltz, the Viennese Waltz, and the Tango or Latin dances such as the Cha Cha, the Rumba, and the Samba. Some dance instruction ballroom & social schools may also teach competition dancing.