Abraham Lake, Phenomenon of frozen bubbles, Western Alberta, Canada

Abraham Lake is an artificial lake on North Saskatchewan River in western Alberta, Canada. The lake was created in 1972, with the construction of the Bighorn Dam, and named after Silas Abraham, an inhabitant of the Saskatchewan River valley in the nineteenth century. Abraham Lake has a surface area of 53.7 km2 (20.7 sq mi) and a length of 32 km (20 mi).

Abraham Lake is home to a rare phenomenon where bubbles get frozen right underneath its surface. They're often referred to as ice bubbles or frozen bubbles. This has made the lake famous among photographers.

Photographer Fikret Onal explains the phenomenon: "The plants on the lake bed release methane gas and methane gets frozen once coming close enough to much colder lake surface and they keep stacking up below once the weather gets colder and colder during  winter season."