The Ijen UNESCO Global Geopark exhibits high geological diversity, recording a transition from Tertiary volcanism to active Quaternary volcanic systems and associated carbonate–karst development; however, geotourism remains predominantly site-based, limiting spatial integration and thematic continuity. This study aims to identify and structure geotrail routes by integrating geological setting, site diversity, and spatial relationships. The methodology applies a sequential framework comprising geological review, site inventory (geosites, biosites, and cultural sites), site characterization, accessibility and clustering analysis, route delineation, and SWOT-based evaluation. The results define five geotrail routes reflecting the geological evolution of the region, with spatial distribution characterized by older volcanic systems in the southern sector, Quaternary volcanism in the northern sector, and carbonate units in the eastern sector. Despite coherent geological relationships among sites, connectivity remains limited due to accessibility constraints and lack of integrated management. SWOT analysis indicates near-balanced internal factors (−0.0047) and externally constrained conditions (−0.5584), placing development in a defensive position. These findings indicate that the main limitation is the lack of spatial and interpretative integration rather than geological diversity. The study provides a systematic framework linking geological evolution to geotrail design to support integrated geotourism development.
Abdillah et al. (Wed,) studied this question.
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