Определение hunting ground в Английский Язык Английский Язык словарь
If you say that a place is a good hunting ground for something, you mean that people who have a particular interest are likely to find something that they want there. Other people's weddings are the perfect hunting ground for ideas
North American Indian heaven, place of peace and utter happiness to which people go after death (belief of some North American Indians); place where much of something desired can be obtained