There are two types of recreation: active and passive. Active recreation includes activities that an individual must directly participate in, such as dancing, playing the piano or scuba diving. Passive recreation only requires one to observe, such as listening to music or watching a basketball game.
Recreational activities bring enjoyment and are considered fun by the participant. Studies have shown that recreation is a psychological and biological necessity. Not everyone enjoys the same activities, so recreation is subjective. Indoor people might derive no pleasure from hiking but enjoy writing or listening to music. Other people might feel claustrophobic indoors and would much rather be lounging in the sun or rock climbing.