25 Bizarre Nature Photos Showing How Strange Earth Really Is 5. Calcifying Lake: This creepy lake in Tanzania, Lake Natron, has such high pH levels that it calcifies any animal that goes into the water. Prev Next Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26