The best way to get around the island would be to rent a scooter. To rent scooter outside, things that there are required are, passport, driver license and money. When riding a scooter the driver and passenger must at all times wear a helmet, if the passenger or driver if seen by the authority not wearing one you will be fined and if found not having a driving license you will pay even more.
Around the Island trip.
There is a ring road around the island on which you can drive to Chaweng, Lamai, Nathon, Maenam or Bophut. It’s very easy to navigate around Koh Samui. If you need a map, you can get one at most hotels or you can make a stop at a travel agency and pick one up.
If you like a calmer atmosphere, I can recommend the Bophut or Maenam Beach. You can even find some lonely beaches on Koh Samui like the Sliver Beach.
The temples of Koh Samui are really beautiful. But there are more to see than the famous Big Buddha, the Wat Plai Laem or the Wat Khunaram.
One of the most famous sights of Koh Samui, the Grandmother and Grandfather Rock, in Thai known as Hin Yai and Hin Ta, are the most popular photo scene. They are located south of Lamai Beach and represent the male and female sexual characteristics.
Every Friday evening there is a huge Walking Street between the Fisherman’s Village and The Wharf Samui in Bophut. On Sunday there is for example another big Walking Street from 5.00 P.M. to 10.00 P.M. in Lamai.
You can also find some waterfalls on Koh Samui. Moreover, you will find some fresh natural pools at the Namuang Waterfall and Namuang Waterfall 2, where you can go for a swim. Due to the fresh water, those are really cool.
Partying, the main area is located in the Soi Green Mango, where you can find the same-named club. Although it gets only crowded after midnight, you can have your party way earlier. You should head to the Ark Bar at the Chaweng Beach with its fire shows and DJ every evening.