An important part of the island of Kos is located in the center of Kos. If you come by day you can see a lot of places without renting a car. You can walk or even walk to the beach where you can reach the beach. Of course, you should rent a car for more beautiful beaches or use public transport with a good plan. If you rent a car, you can stay at least 1 night and see most of the places to see.