Music and dance play an important part of recreation in many cultures. So do sports and hobbies, of course, and sometimes food and drink.
Drugs are sometimes used as a form of recreation (see recreational drug use)--and, like dancing, sex, and some other forms of recreation, regarded in some or all forms, by very many people for various reasons, as illicit activity.
The weekend is typically a time for recreation, perhaps (in Judeo-Christian and Muslim cultures) because the Sabbath falls on the weekend and the Sabbath is "the day of rest." Holidays are also a common time for recreation.