http://www.potsaa.com/sea-crystal/

Where do I go to Malaysia to sea water clear and beautiful beach, amazing scenry?
for example, is it recommended to go either Penang Langkawi or Sabah?
You can find clear water and beautiful beach at Pulau Tioman and Pulau Redang from April to October. There are many fish colorful, even where the sea is shallow. Langkawi is a combination of mountains and sea green breezy, but this is often not very clear. The greener Sea is located at Emerald Bay, Pulau Pangkor. I have not explored much of Sabah, but from the little I have seen and know, is one of the best places in the world for scuba diving, but its beaches are mediocre. I highly recommend Redang and Tioman.
BE ANGEL – CRYSTAL SEA – POP VRS