Anything other than the curriculum or studies is extracurricular. They can be broadly classified as in door and outdoor activities. I prefer chess, watching television and surfing net as in door activities and playing cricket and going to gym in outdoor activities. Moreover, I occasionally read I good book when I am free. Everyone must have some sort of good extracurricular activities as this keeps our brain well tuned and fresh for the upcoming challenging of the next day. Furthermore, this also makes us physically fit and prevent us from all the deadly diseases like diabetes, heart diseases, blood pressure, stress and obesity.