4) Pumpkin Spring Pool
In the Grand Canyon lies a dangerously tempting hot spring pool, which is shaped almost exactly like a giant pumpkin. Although hot springs are often good for health and rich in beneficial minerals, the chemicals in this pool’s murky green water are dangerous to soak in. High levels of lead, zinc, copper and most alarmingly arsenic make it an unwise choice for bathing and present a health risk, with the amount of arsenic at over 20 times the safe level. The resemblance of the pool to a vegetable is purely coincidental, but it is uncanny. The pool stands above the Colorado river, with the water running into the pool and becoming diluted in the current of the river. Take a rafting trip along the river and you’re bound to notice the huge pumpkin rise up like something from a Roald Dahl novel!
