But there's one nearby adventure that not a lot of Denver-ites know about: shark diving. Located in the heart of the city, the Downtown Aquarium offers a surreal thrill for certified divers who ...

The Denver Aquarium is loads of fun ... packed with giant-sized whales, sharks, octopi and other sea creatures that your kids can romp on for as long as they'd like — for free!

Above us, a whitetip shark glided through the clear water ... The instant I surfaced from the cold, salty water of the Downtown Aquarium in Denver, though, I was drumming up ways to fund a ...