or more people, public open space plays an important role in everyday life. High accessibility causes a variety of activities to take place, both according to planning and those that take place without being planned. One of the activities that occur spontaneously and continue continuously so that it becomes a permanent construction is the formation of an informal market. The market is a meeting place for two actors, namely sellers and buyers, in economic activities in the form of buying and selling. However, unlike modern markets, traditional markets also take place in hybrid social activities. To find the hybridity of these two activities, it is necessary to conduct a research using a qualitative descriptive approach. The results of this study indicate that these two activities take place alternately and simultaneously. This hybridity is also a factor for their survival in the pressure of an environmental situation that was formed without a plan.