Oregon hiking- Opal Creek Scenic Area and Wilderness. It is located east of Salem, in the Willamette National Forest. Opal Creek runs through thousands of acres of protected old growth forest, crisscrossed with over 30 miles of hiking trails.
Lake Retba, Senegal (western Africa) Can't believe I had never even heard of this! (Lac Rose/the Pink Lake!) The pink color is from a bacteria that grows in the lake due to it's extremely high salt content.
Lake Retba, or as the French refer to it Lac Rose, is situated north of the Cap Vert Peninsula in Senegal, northeast of Dakar. The lake's harmless bacteria makes it pink while it's high salt content makes in easy to float on