The distinctive azure blue color of Moraine Lake in Alberta, Canada, is caused by sunlight refracting off the rock sediment deposited in the lake by surrounding glaciers each summer.
[📹 Carme MacLeod]
https://video.nostr.build/88fd49f9de71b3462abc7c2be8bf93be22dfddedb507eed2f8e4bfc30acffb8e.mp4