The car must be cleaned before returning it. The interior of the car must be clean and must correspond to the condition in which the vehicle was taken over by you. Pay particular attention to sand or other dirt in the interior of the car. Also, please do not use the car in a wet swimsuit and take care not to damage it.
The insurance does not cover the pollution of the car.
The complete binding conditions can be found at this link.
Thank you for respecting the above conditions and for returning the car in good condition for the next user.