Opposite to Koh Mook island, Koh Kradan, unlike the latter, has no village or local life, There are only small resorts one after the other and a minimart (at Kradan Beach Resort) on its third owned by private owners. The rest of the island is part of Hat Chao Mai National Park. The beach with the bungalows is on the east side. There tou can watch beautiful sunrises. It is also in the early hours of the day when the tour groups have not landed yet on Kradan's beaches that the island is the most pleasant. Koh Kradan is on the program of many tours and especially of the famous 4 islands tour. So many groups arrive by boat on the beach to spend 1 or 2 hours and go. And Ko Krdan gets peaceful again in the late afternoon (around 4.30 pm).
On the West side of the island, there is the small rocky beach called ''Sunset Beach''. It is accessible by a path through the forest. When I was there (November 2016), there was a big pile of litter. Definitely a shame because despite the rocks, it could be a nice place to enjoy the sea a bit away from other vacationers and tour groups. Above Sunset Beach, there is a small point of view ideal for observing the sunset.
Be aware that in most resorts, bungalows have only electricity at night or at best electricity at all times but air conditioning only at night. Do not be surprised, it is the sign that the island is still preserved of too much modernity.
The best time to come to Koh Kradan is from December to March knowing that during the low season from May to the end of October, when it rains the most, tourism activity is very limited and most of the resorts on Koh Kradan and other Trang islands are closed.