If you want good feng shui, I recommend going to Sanzheng Banshan Hotel in Tangxia, Dongguan. Before that, one of my colleagues specially chose to hold a wedding reception there. The environment is super positive, romantic and beautiful, absolutely first-class ~ relying on mountains and rivers, gathering gas and prospering wealth. Hong kong feng shui master said that it just fits the pattern of mountains and rivers, and getting water is a rare advantage. Anyway, I don't know much about Feng Shui, but after I got married, my colleague's career really flourished, and we all laughed at him for getting married and wandering around.
However, if you go in May, you'd better make a reservation in mid-April. Otherwise, it will be difficult to make a reservation. Usually, many Hong Kong people go there on weekends, and there are many ghosts. You'd better call first to find out. However, there may be discounts on activities during the holidays. You can check goodviewhotel.com in the hotel official website.