First, there is a need to have indicators to monitor changes in the field of nature-based recreation in general (related to society wide or sector wide development), which are able to describe the general development and changes concerning nature-based recreation or recreational use of forests as a way of using forest resources. Second, there is a need to have indicators to monitor objectives achieved, impacts and changes caused by a special policy, an action program, a plan or a single action: direct or indirect impact or change, which is a result of administrative, legislative or financial actions, investments or other types of actions directed to recreational use of forest resources. All possible indicators explored from literature or identified by expert knowledge and experience were described by seven categories of information.