1. Valid Passport: Your passport should be valid for at least six months beyond your intended stay in the UAE. It should also have at least one blank visa page.
2. Visa Application Form: Fill out the visa application form accurately and completely.
3. Passport-sized Photos: Provide two recent passport-sized photographs that meet the specific requirements set by the UAE embassy or consulate.
4. Proof of Travel Intent: Show evidence of your intention to visit Dubai for tourism purposes, such as a detailed travel itinerary, hotel reservations, or a letter of invitation from a UAE host (if applicable).
5. Proof of Financial Means: Demonstrate that you have sufficient funds to cover your expenses during your stay in Dubai. This can include bank statements, credit card statements, or other financial documents.
6. Medical Insurance: Some UAE embassies or consulates may require proof of medical insurance coverage for the duration of your stay in Dubai. Check with the embassy or consulate regarding this requirement.
7. Additional Documents: Depending on your specific circumstances and the requirements of the UAE embassy or consulate, you may need to provide additional documents. These could include a letter of no objection from your employer, proof of residence, a copy of your round-trip flight itinerary, or other supporting documents to demonstrate your eligibility for a tourist visa.

The duration of stay granted on a tourist visa to Dubai is typically 30 days. However, there are also multiple-entry tourist visas that allow for longer stays, such as 90 days or 180 days. The duration of stay will depend on the type of tourist visa you apply for and are granted.

The processing time for a Dubai tourist visa can vary depending on several factors, including the type of visa, the time of year, the workload of the UAE immigration authorities, and any additional processing requirements. In general, it can take anywhere from a few days to a few weeks for a tourist visa application to be processed.