Abstract:
As the leading industry, tourism has developed many cultural destinations 
sustainably through loyal tourists. Therefore, Sri Lanka has included many 
tourists loyalty program to keep tourists, while promoting the eight world 
heritage sites with the 2000 year aged history. However, except Sigiriya and 
Polonnaruwa, all other cultural places have attracted a few tourists within the 
recent five years. Meanwhile, there were very limited researches to discuss the 
effect of loyalty to sustainability. The main objective of the study was to identify 
the effect of destination’s loyalty on sustainable tourism. 513 tourists 
represented the sample from the tourists who visited Sri Lanka in the year 2019. 
Data collected through well-developed questionnaire, the results proved that 
loyalty is leading for sustainable tourism. Finally, researchers purposed 
strategies to relevant authorities to develop many exciting activities with 
greater hospitality attached to cultural areas to enhance tourists’ loyalty for 
sustainable tourism.