As of my last knowledge update in September 2021, if you want to rent a boat in Turkey, you generally do not need a special license to operate a small recreational boat for personal use. This applies to boats with engines that are up to a certain horsepower limit, typically around 15 horsepower.

However, if you plan to operate a larger boat or a boat with a more powerful engine, you may need to obtain a boat license or a boat driving certificate. The specific requirements for obtaining a boat license may vary depending on the size and type of the boat, the engine power, and the coastal regulations in different regions of Turkey.

For foreign visitors, there might be some yacht rental turkey additional regulations or requirements, and it's essential to comply with local laws and regulations. If you're considering renting a boat in Turkey, it's advisable to check with the boat rental company or local authorities to confirm the licensing requirements based on the type of boat you wish to rent.

Additionally, if you are chartering a crewed yacht or joining a guided tour, the charter company or tour operator will handle the boat's operation and navigation, so you won't need a personal license.

Keep in mind that regulations may have changed or been updated since my last knowledge update in September 2021. It's always best to verify the most current requirements and regulations with the Turkish authorities or a reputable boat rental company before planning your boat rental in Turkey.