See the bats swarm at dusk
From May to October, 10,000-20,000 Mexican free-tailed bats stop for a while in Phoenix during their migration south to Mexico. While in Phoenix, they give birth to their young. One of their favorite haunts is known as the Bat Cave, which is actually a large storm tunnel on East Colter Street. At dusk, the bats take off to hunt for bugs and swarm out of the “cave”. Check out the website to get exact directions to the storm tunnel along the Arizona Canal, near 40th and Camelback Roads.