Blue Pond in Biei, Hokkaido, Japan
© JTB Photo/UIG/Getty Images
Blue Pond in Biei, Hokkaido, Japan
Scientists aren’t exactly sure what causes the vibrant colour in Hokkaido’s Blue Pond. The water itself is not unusual, and appears clear. But at different angles, times of day, and depending on the light and distance, the water of this small pond near Daisetsuzan National Park can look electric blue or turquoise. The current theory centres on the relatively high concentration of aluminium hydroxide in the sediment at the bottom of the pond, which can reflect light in a bright blue colour.
Related Images
Meditation domes at the Beatles Ashram in Rishikesh, India
Circular agricultural fields in Morgan County, Colorado
A baobab grove near Bandia Wildlife Reserve in Senegal
Black-crested titmouse in Texas Hill Country
Aerial shot of mangroves at King Sound, Western Australia
Lake Dobson in Mount Field National Park of Tasmania
A Komondor competes in the Westminster Kennel Club Dog Show in New York City
Leopard snoozing in a tree in Namibia
Bing Today Images
Port de Saint-Goustan, Auray, Brittany, France
Jul 22, 2026
Hammock camping on a lake in Central Florida
Jul 22, 2024
Hammock camping in a bald cypress tree, Florida, USA
Jul 22, 2023
Minokake-Iwa rocks, Izu Peninsula, Japan
Jul 22, 2021
