In short, yes, hotels can see that you are visiting YouTube, but they generally cannot see your specific search queries or the exact videos you watch. Because YouTube uses HTTPS encryption, the data sent between your device and YouTube's servers is scrambled. A hotel IT administrator monitoring the Wi-Fi network would see that a guest is connected to youtube.com, but the specific URL paths (like your search terms or video IDs) are hidden within the encrypted tunnel. However, if you use a "Smart TV" provided by the hotel and log into your personal YouTube account, your history and searches might remain saved on that device unless you explicitly log out and clear the data. To ensure absolute privacy on any public network, travelers are encouraged to use a Virtual Private Network (VPN), which masks even the domain name you are visiting from the hotel's network logs.