I had a great experience of child care as a volunteer with those local Mongolia volunteers we played group games together and also taught and delivered some correct environmental messages to those chi

That sounds like a wonderful experience! It's great to hear that you had the opportunity to volunteer with local Mongolia volunteers and engage in group games with the children. Teaching them about correct environmental messages is also very important in fostering a sense of responsibility towards the environment from a young age. Your efforts as a volunteer will surely have a positive impact on the children and their understanding of the environment. Well done!