Because the roads in Samet are unpaved rather than paved, car rentals are not common here. Instead of 24-hour car rentals, motorcycle rentals are popular in Samet. Compared to the price of a rental car, renting one on Samet will be slightly more expensive than on the continent.
The distinctive feature of motorcycles are studded wheels, which are specially designed for riding on bad roads and sand. However, for inexperienced drivers, they still won't save you from falling off. You won't be able to find a rental car in Samet without a deposit, as it's not safe to drive on local roads, to put it mildly.
It's impossible to find an inexpensive car rental in Samet, as even a short cab ride will cost at least 500 THB. If you still don't give up hope of finding a cheap car rental in Samet, you should opt for a quad bike. It costs around 600 THB per hour, but it can make for an exciting ride through the local jungle.