Na Muang Falls
A short drive from Nathon Town will bring you to the first of a pair of waterfalls. The first cascade, which is almost 20 meters high, can be reached by by car up an unpaved road.
The higher of the two is also the tallest at 80 meters. Reaching it requires a half hour walking climb. Take a picnic lunch and enjoy Samui's natural beauty.
Hin Lat
Closer to town and has a series of cascades that form a large pool. Getting in to the falls requires a trek of 3 km. It's a jungle path so don't wear shorts. The pool is a cold and a refreshing pick-me-up after the trek.
Secret Buddha Garden
High in the hills of Samui, a dedicated individual has built several Buddha statues and temples over the past 20 years. The 2 hour trip is difficult and a 4 wheel drive vehicle is required.
Samui Aquarium and Tiger Zoo
The aquarium has several species of local fish including grouper and sharks. Tigers and leopards in cages if you like that sort of thing ... I don't. Last comes the animal acts. Shows feature hornbills, sea hawks, parrots and otters.
Na Tian Butterfly Garden
The butterfly garden has an excellent collection of exotic species. A bee hive gives you an inside look at the busy creatures.
Snake Farm
Located at Taling Ngam has 2 shows per day at 11:00 and 14:00 respectively. Reptiles native to Ko Samui and other parts of Asia. Scorpion and centipede displays are okay, I guess ... but I could do without the cock fighting show.
Naga Pearl Farm
If you like pearls, you might want to see how they are cultured. Thai pearls have their own "look" and have become accepted internationally.
Ancient House
Wood crafters and wood lovers alike can enjoy the teakwood house at Ban Thale. Built about a century and a half ago without the use of nails, this oldest house on the island features excellent carving as well.
Best Mountain View Point
At almost 500 meters elevation, this location offers excellent views.