Just pen my experience here in case any bros seeking some action.
Was in nanning recently for a short leisure trip.
Opposite the train station, there are lots of massage shops and sex product shops. Most likely there is action but never try.
I was staying in a hotel nearby and there were saunas and a massage shop surrounding it. Late one night, was feeling a little adventurous and dropped by the massage shop in front of the hotel. After massage abit, felt horny and tabao the girl back to hotel room. ST 200RMB.
Along Chaoyang Rd, there is another massage shop which is open in the day till late at night, with red lighting inside. Passed by a few times in the day but too many people can see the shop from the road so but didn't go in and try.