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balconing

n. 1 the act of going from one room to another room through the balcony. 2 the act of jumping from a balcony towards a swimming pool.

Wikipedia
Balconing

Balconing is an activity that involves jumping from a balcony towards a swimming pool. Participants usually scramble up the sides of buildings and jump from one balcony to another or hurl one another towards a swimming pool. The diversion has gained popularity among tourists of the Balearic Islands of Ibiza and Majorca in Spain. Videos of balconing have been posted on video sharing web sites such as YouTube, increasing its awareness.