Iran’s Hormuz Island, located along the Persian Gulf coast, has once again become the center of global attention following recent rainfall, as its shoreline and nearby sea waters have taken on an unusually deep red color.
The striking sight led many social media users to describe it as a case of “blood rain.” However, environmental experts have clarified the scientific reality behind this mysterious phenomenon.
According to experts, the red coloration of Hormuz Island is neither the result of pollution nor a dangerous environmental change. Instead, it is a completely natural process. The island’s soil contains hematite, a mineral rich in iron oxide. When rainwater flows through this soil, iron oxide particles dissolve into the water, turning the coastline and surrounding sea a vivid red.
Hormuz is also known as the 'Rainbow Island' because its landscape features not only red soil but also yellow, golden, and orange hues. These colors are the result of thousands of years of geological activity, making the island one of the world’s most unique natural wonders.
Experts emphasize that while the recent visuals may appear alarming, they pose no environmental threat. On the contrary, the island’s distinctive mineral composition and natural colors make Hormuz exceptionally valuable for both scientific research and tourism.
Videos and images of the red shoreline after the rainfall have gone viral on social media, once again drawing the attention of tourists and nature enthusiasts from around the world. Hormuz Island remains a living example of how nature can create scenes so extraordinary that they feel almost mythical, despite being entirely real.







