Objective - Climate change has an impact on not only environmental problems, but also on socio-economic communities. Indonesia as an archipelago country has the second longest coastline after Canada. Indonesia has a high vulnerability to climate change, especially rising sea levels which can cause abrasion. Public awareness is needed to preserve the coastal area, to prevent potential disasters that may occur. Consequently, it is important to analyze the determinant factors of tourist's willingness to pay ('WTP') for mitigation of abrasion and how much it would cost. This study also estimates how the relationship between a tourist's WTP and abrasion on coasts in Yogyakarta.

Methodology/Technique - A multiple linear regression method is used to estimate the determinant factors of a tourist's WTP. The location of this study is on Kuwaru Beach and Pandansimo Beach in Bantul Regency, which have several indicators of the possibility of abrasions. Two hundred respondents were interviewed regarding the influence of socio-economy and other factors to tourist's WTP.

Findings - That result is equivalent with the level of abrasion for each beach.Variables of education and income have significant effectson tourist' WTP at Kuwaru Beach. While in Pandansimo Beach, age and education have significant effect on WTP. The average tourist's WTP for mitigation in Kuwaru beach and Pandansimo beach at Yogyakarta are Rp 81,150.00 and Rp 62,250.00.

Novelty - Mitigation on abrasion calls for community awareness amongstlocal citizens, tourists, and people who conduct business along the beach. For the two beaches studied, the variables used – sex ratio, age, education and income – have a significant effect on a tourists' willingness to pay for abrasion mitigation.

Type of Paper - Empirical

Keywords: Coastal Abrasion; Mitigation; Tourist; Willingness to Pay; Indonesia.