Although Dubai offers a wide range of attractions and activities for tourists, there are some things that cannot be done or are not recommended. here are some samples:

Public affection: Dubai follows conservative Islamic practices and public affection, such as kissing or hugging in public, is considered inappropriate and can lead to legal consequences.

Consumption of alcohol in public places: Non-Muslim tourists can consume alcohol in approved places such as hotels, bars and restaurants. However, consuming alcohol or getting drunk in public places or on the street is illegal.

Nudity or inappropriate clothing: Dubai has a modest dress code and it is important to respect local customs and traditions. Wearing revealing clothing, especially in public places outside of resorts and beaches, may be considered offensive and may result in legal consequences.

Offensive behavior or language: Dubai has strict laws against offensive behavior, including offensive language, gestures or disrespectful behavior towards religion, culture or government officials. It is important to remember local customs and behave respectfully.

Photography Restrictions: Photography may be restricted at certain government buildings, military installations, airports and certain cultural and religious sites. Always ask for permission and respect any signs indicating photography restrictions. 

Gambling: Although Dubai is known for its luxury resorts and entertainment, gambling is illegal in Dubai. There are no casinos or similar establishments where tourists can legally gamble.

Illegal drugs: The possession, use or sale of illegal drugs is strictly prohibited in Dubai. Participating in drug-related activities can lead to serious legal consequences, including prison terms.

Premarital sex: Sex outside of marriage is illegal in Dubai, including between unmarried couples sharing hotel rooms. It is important to be aware of and respect local laws and cultural norms.