Final answer:
Children should use hotel spas with adult supervision to ensure their safety.
Step-by-step explanation:
The subject of this question is Health and the grade level is Middle School.
Using hotel spas should always be done under the supervision of an adult. This is because young children should never be left unattended around sources of water that pose a risk of drowning. Hotel spas often have pools, hot tubs, or other water features that can be dangerous for children without adult supervision.
To ensure the safety of children, it is highly recommended that they only use hotel spas with the presence of an adult.