After you have had your fill of Chaweng Bay, get back to the road and follow it Laem (cape) Nan to Lamai Beach. Lamai is, besides Chaweng and Maenam, the most popular beach of Ko Samui and a lot of hotels, restaurants and guesthouses (most of them in the low to medium price range) are located here. There is a village with the Lamai Cultural Hall, where you can make a stop (to get to the museum, do not follow the small road that runs parallel to the beach, but stay on highway No. 4169. It is located at the 90 degree turn. ). The museum displays local tools, music instruments, ceramics, and so on. At the end of Lamai Beach, on a small cape, you will find the two rock formations that are known as Grandmother Stone and Grandfather Stone (Hin Ta and Hin Yai)- two rocks that are on Koh Samui revered as, let`s say, fertility symbols. The place is very popular among tourists and the short path that leads from the highway to the shore is lined with many, many stalls that offer cheap clothes, costume jewellery, and all kinds of souvenirs. Not far away from here is the Overlap Stone, an excellent viewpoint, but difficult to reach. The trail is very steep and you can drive only about half the way up and have to hike the last kilometer (bring a bottle of water and a lot of energy!). Once you are on the top, however, you are rewarded with beautiful views of the southern coast of Koh Samui. You can find the trail if you drive on the highway past Hin Ta and Hin Yai and watch out for a sign on the right side of the road that says "Overlap Stone".
 

If you are not interested in hiking tours, you can visit two interesting temples, Wat Khunaram and Wat Sumret. Just go an driving south on highway No. 4169 until the little village Ban Hua Thanon and then drive about 1 kilometers east (i.e to the right). On the left side of the highway is a narrow dirt road that leads (after 1 more kilometer) to Wat Sumret. Wat Sumret is, like most of the temples of Ko Samui, inhabited by only a handful of old monks that look after the buildings and keep the paths clean. It is a quiet and lovely forest monastery, with a number of very beautiful old teakwood buildings. The fact that it is almost forsaken only adds to the charm of the place. On the temple grounds is the ruin of an old chedi, probably from the 17th century. One of the buildings houses a precious Buddha statue made of Burmese white jade (the building is usually locked; you have to ask the friendly old guardian or one of the monks to open it for you. Do not forget to leave a donation in the donation box!)

Wat Khunaram, the second temple mentioned above, is located some kilometers west of Wat Sumret. Drive back from Wat Sumret to the highway No. 4169 and turn left. After 1 1/2 kilometers you will see on the the left side of the road an arch that marks the entry to the temple. Just as in Wat Taling Ngam, the major relic here are the intact, undecayed remains of a monk who died 20 years ago. In Thailand, this is viewed as a sign of high spiritual accomplishment. It sits (in proper meditative posture) in a glass shrine in a simple hall. There are always some worshippers who put flowers or other offerings in front of the altar.

A little bit north of Wat Khunaram are two waterfalls, the Na Muang falls - but they are even less remarkable than the Hin Lad falls, especially in the dry season. However, if you feel like visiting them, just get back to highway No. 4169 and follow it for about 2 kilometers. There is a sign at the turn off on the right side of the road. The falls (so to speak) are only a short walk away from the parking lot - if there are not too many tourists or local picnickers, the place has a certain quiet charm - but do not expect too much of it!