References

References below 

 https://www.sagt.com.lk/port-of-colombo/history.html   

https://digitaltravelcouple.com/unawatuna-beach-sri-lanka/

https://www.taruvillas.com/destination-guide/galle/attractions/japanese-peace-pagoda/

https://nerdnomads.com/unawatuna-beach

https://destinationlesstravel.com/things-to-do-in-nilaveli-beach-sri-lanka/

https://www.themiracleisland.com/fort-frederick.php

https://www.lonelyplanet.com/sri-lanka/the-east/trincomalee/attractions/maritime-naval-history-museum/a/poi-sig/1568582/357468

https://www.lovesrilanka.org/negombo-beach/

https://www.thecoastalcampaign.com/arugam-bay-things-to-do/

https://1001beach.com/en/south_asia/sri_lanka/mount_lavinia