Strange as it sounds, I always recommend going snorkeling or scuba diving when visiting Denver. The Denver Downtown Aquarium offers indoor cage diving, scuba diving, and snorkeling. But I think one of the best things to do is snorkeling in the Denver Downtown Aquarium. AdvertisementPlus, in the aquarium tank, you don't have to worry about harming a fragile coral reef as you dive or snorkel. Zanny Merullo SteffgenIf you're a certified scuba diver, the Denver Downtown Aquarium offers fish ($225) and shark ($235) diving experiences.

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Persons: who's, —, I've, gawking, you've Organizations: Denver, Denver Downtown Aquarium, Service, The Downtown Denver Aquarium Locations: Colorado, Denver