Ocean tourism is a sector of the travel and recreation industry centered on maritime environments, encompassing activities such as coastal sightseeing, scuba diving, sport fishing, whale watching, and cruise navigation. As a GIS use case, ocean tourism leverages geospatial data and spatial analysis to optimize planning, resource management, and visitor experience across marine and coastal zones. GIS technology enables analysts to integrate multi-layered datasets — including bathymetric surveys, sea surface temperature readings, marine protected area boundaries, vessel traffic patterns, and coastal infrastructure inventories — into interactive maps and dashboards that support evidence-based decision-making. Geospatial analysts apply remote sensing imagery, GPS tracking, and real-time oceanographic data to assess environmental carrying capacity, identify high-value biodiversity hotspots, and model the spatial impact of tourist activity on sensitive ecosystems. Practical benefits include improved route planning for maritime operators, regulatory compliance mapping for conservation authorities, and predictive modeling for seasonal demand forecasting. By centralizing disparate marine datasets within a unified GIS framework, stakeholders can balance economic development objectives with sustainable stewardship of coastal and oceanic environments.