There's not much in the way of party nightlife, which, for many, is part of Ko Lanta's appeal. But there is always something going on if you ask around. There are a few restaurant/bars at the harbour, beaches and most hotels. Since it is a small island free of crime and drunkards, the local police are lenient about allowing bars to stay open until the last customer goes home.

• Charlee Barleys (Centre of Klong Nin Beach). A friendly bar/restaurant/bungalow. This is a great place to meet other travellers from every demographic. Relaxed sunset happy hours every night. Sometimes live music from international guests. (updated Dec 2017)
• 7.6172999.032861 Irie Bar (N Phrae Ae Beach, on the main road, beach side as you enter Phrae Ae from Klong Dao, next to Mr. Green Restaurant and Chill House). Local guy named Arms plays here with his band "Lantana".   
• 7.59671399.0330392 Korner Bar (S end of Long Beach, before Relax Bay). Bar on the beach/rocks that often has cheap drink offers on and sometimes guest DJs. Nice atmosphere and open late. Axe pillow seating outside and covered seating inside.   
• Layana Resort & Spa-Tides Restaurant, 272 Moo 3 Saladan. 11:30 to 18::00, Dinner-19:00-22:30. This is an upmarket resort in Ko Lanta. The restaurant setting is beach front and beautiful. The staff are friendly and attentive but not intrusive. Delicious menu and good wine list. Is more expensive than other restaurants in the area. 
• Mook's Bar (Klong Dao Beach between Sun Fun & Sea Bungalows and Han's Beach Restaurant). A good spot to relaxing with a drink on the beach, listen to some reggae and maybe watch sports on TV. Mook himself is a person worth meeting. 
• Ting Tong Bar (Klong Khong Bay Bungalows), 24 Moo 2, Klong Khong Beach (S end of Klong Khong Beach. Coming from the main road, turn right after the gasoline station after 7-Eleven).