We will conduct a large sample, public opinion survey that would generate data for a combined stated and revealed preference analysis of the recreational use of wetlands in Hong Kong. The revealed preference approach entails using travel cost analyses to determine the consumer surplus of recreational users of each site, and hedonic travel cost analyses to derive the values of site characteristics, including both natural and human-made attributes. A stated preference component will be included to mitigate drawbacks of the revealed preference approach. This study will provide a vital evaluation of protected area attributes and amenities that contribute to public benefits from natural recreation, which are particularly relevant given the Government’s current and future focus on outdoor activities. The research will also provide essential information on not only the frequency and duration of visits, but also the willingness-to-pay (WTP) among Hong Kong residents and visitors from the Greater Bay Area (GBA) for natural outdoor recreational activities and access to specific site characteristics.