Karlovy Vary is a tranquil tourist town that warmly welcomes visitors. As a result, there's generally no need to be overly cautious. Safety guidelines in Karlovy Vary primarily revolve around simple attentiveness. Just like in any other travel destination, it's advisable not to leave your belongings unattended. The most important precaution here relates to the responsible consumption of mineral water. The local springs offer a different kind of "mineral water," and it's crucial to drink water from them strictly following a doctor's recommendations.
It's challenging to pinpoint any unsafe areas in Karlovy Vary, as the city is exceptionally conducive to leisurely strolls and exploration.