Modern human life full of bustle and stress, sedentary lifestyle and staying indoors are the reasons for the growing desire of the people to stay in nature and have activities in the fresh air. The global pandemic has contributed even more, the consequences for human social life are already visible. People are increasingly looking for outdoor facilities so they can keep a social distance and be safer for their health. This is especially related to children who spend too much time indoors with school obligations and looking for a break in technology. In order to move children from indoor spaces and encourage the desire to stay in nature as long as possible, the idea of a playroom for children in the open space and fresh air was born. The playroom would be located in a natural environment, in a forest, made of natural materials and would use renewable energy sources in order to raise awareness of the need to preserve the environment and return children to nature. In order for a business idea to be successful and achieve positive results, it is first necessary to design it well and make a business plan. A concrete example shows the complete methodology of making a business plan as well as financial projections that aimed to draw a conclusion about the profitability of investing in a new entrepreneurial venture. The projection of the profit and loss account in the five-year period resulted in a positive financial result in all years. The survey was conducted with a survey questionnaire. The analysis and interpretation of the research results revealed the attitudes and opinions of the respondents and showed that there is not enough content for children in nature and that parents are interested in such activities, which is a prerequisite for starting an entrepreneurial venture.