 Temperate reefs are less popular as tourist attractions, but can have their own enthusiasts, including short range tourism and incidental dive tourism associated with general tourism in the region.Any exceptional dive site may be visited by expeditionary dive tourists once the attractions are known, though these destinations are generally not serviced by mainstream tourism service providers.Tropical coral reefs are popular recreational diving tourism destinations, as they are generally both pleasant and colorful to dive, relatively low in serious hazards, and the water is at a comfortable temperature, so they attract divers of all levels of competence.