The biggest safety hazard in a single gym in the fitness industry basically exists, that is, the probability of guests overtraining or sudden death from shock is less than that of plane accidents nationwide. After all, you don't have a swimming pool and there are some basic injuries. These consequences are not too serious. Even if you accompany them, it won't cost much. Besides, some things are not necessarily your responsibility.
What can we do? You should know the emergency standard procedure. This process needs to be improved, and every employee should be skilled. Management can't relax on security issues. Human intervention is the safest. Buying more insurance will only give you comfort. If something really happens, the loss of your hotel reputation may be greater than the choice of compensation. I will lend you physical defense instead of civil air defense, and it is true.
If you have any other questions, you can trust me privately.
What can you do?
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.