What is referred to as Lanka or Lankapuri in the Ramayan is the present day Srilanka. In the Tretayug Shri Mahavishnu incarnated as Shrirama and went to Lankapuri where He annihilated the demon, Ravan. Now 70% of the population of Srilanka is Buddhist.
The temples of five Deities Keteeshwaram, Tondishwaram, Munneshwaram, Koneshwaram and Naguleshwaram from Sri Lanka are famous. Koneswaram is also referred to as Thirukoneswaram as it is in the village of Thirukoneswar.
During our tour of South-east Asian countries, we learnt that in the forest on the island of Sumatra in Indonesia, there are camphor trees yielding pure Bhimseni camphor. This territory being impassable and mountainous we learnt from some people