I went to Koh Lipe Island in southern thailand last month. Many said Koh Lipe is the last unspoilt island in Thailand. I certainly agreed.
First day, early morning, I took the ferry from Kuah Jetty, Langkawi (RM 95 one way). The ferry took 2 hours to reach Koh Lipe Island. On arrival, pay 50 bath for the long boat to carry us to the island.
Ferry to Koh Lipe in Kuah Jetty, Langkawi
After all the passport is chop, I check into Varin Resort in Pattaya Beach. It is nice and clean. 1200 baht for an air-con room, inclusive breakfast. There is an option to get 200 baht rebate if you don't want the breakfast. Honestly speaking, the breakfast is not worth it.
After settling down, I went exploring. There is 3 beach in koh lipe. Pattaya Beach is crowded and trendy. Sunrise beach is quieter and has a few luxury resorts. Sunset beach is a bit boring, if you want total peace and quiet, that will be the place for you. There is a road in between Pattaya Beach and Sunrise beach. This road has all the shops and restaurant.
Dessert Bar
Tourist Information Counter
Raggae Bar, cool ambience..
At night, there are tons of restaurant to choose.. Every restaurant has different ambience and they all serve cheap Thai food. Seafood is afordable here.
Green Curry, my favourite 
Many said Koh Lipe is the last unspoilt island
in Thailand. I agree, Definately agree.