Cenang Beach is the party place of Langkawi. It has loud music and great shacks / restaurants. You could do water sports here at a reasonable cost. This place is usually crowded and have many options. It is like North Goa or Kuta in Bali..
Little island with some of the best beaches in the world
Start at bars on Pentai Cenang beach, then clubs
Tax free – CHEAP BOOZE
Not so many places to party. Great for 3 days (ideal visa run)
High season is Jan to April