PurposeAccessibility is critical in tourism planning for protected islands, especially when balancing tourism and conservation interests. This study aims to explore the dimensions of accessibility that impact tourists' decisions to visit protected islands and encourage tourism. The accessibility dimension is essential in designing sustainable tourism management of protected islands. Design/methodology/approachThis study was conceptualized by integrating the concept of accessibility in the context of transport accessibility, accessible tourism, protected areas and protected islands. In a sample of 487 surveys, factor analysis and structural equation model-partial least squares were used to examine the physical and nonphysical accessibility dimensions. FindingsThe primary objective of this study is to build a conceptual framework for the tourism accessibility of protected islands. This study confirms that accessibility is perceived in three dimensions: destination accessibility, individual accessibility and protected island accessibility. It is also found that all three accessibility dimensions have a significant influence on the decision to visit, with protected island accessibility as the lowering factor. This study demonstrates that, theoretically, tourism accessibility in protected islands should be treated as a convenience and restriction to balance the function of protected areas and tourism. Research limitations/implicationsThe findings of this study can be generalized because the notion of accessibility dimensions is derived from a theoretical investigation of several contexts (transport accessibility, accessible tourism, protected areas and island characteristics) to identify more particular aspects. In addition, the results of the theoretical investigation were tested using quantitative methods with high statistical power (80%). However, saturation has not been reached, because thorough research on tourism accessibility on this protected island is still scarce. Within the same framework, application and duplicate research are required to increase the generalizability of the proposed concept. Therefore, the authors recommend further studies to validate the protected islands' accessibility concept in a broader context by replicating the study in a more diversified timeline, sample and destination setting. Practical implicationsThis study concludes that all dimensions of accessibility in protected islands must be considered from two perspectives: convenience and constraints. Conveniences can be constructed through tourists' perceptions of accessibility. Destination accessibility should be designed with a "back to nature" mindset, excluding hedonistic elements. Individual accessibility is achieved by applying high safety, hygiene and health standards as well as environmental ethics standards that are consistent with the natural characteristics of the environment. This balance between constraint and convenience demonstrates that, while tourism accessibility must be made as comfortable as possible for all individuals, there are particular areas whose accessibility must be controlled to preserve them. The convenience of accessibility for universal access should not be allowed to lead to mass tourism that affects the ecosystem in protected areas. Originality/valueThe novelty of this study lies in the finding that the tourism accessibility of protected islands can be divided into three types: destination accessibility, individual accessibility and protected island accessibility. This study also demonstrates the significant influence of accessibility on tourists' decisions to visit. Accordingly, the protected island accessibility dimension can create a perception of difficult accessibility and lower tourists' decisions to visit. This study concludes that all elements influencing the perception of tourism accessibility on a protected island must be considered to sustainably manage convenience and restrictions to avoid mass tourism. Therefore, it is recommended that these three dimensions be considered in visitor management programs.
