With its crystal-clear turquoise waters, Waikiki Beach is a paradise for swimmers and surfers.
This stunning alpine lake is renowned for its incredibly clear, blue waters and scenic mountain vistas.
Known for its vibrant coral reefs and serene blue waters, Key West is a snorkeler's dream.
This reservoir is surrounded by red rock formations and offers boating in waters so blue they seem unreal.
The Emerald Coast lives up to its name with its shimmering blue-green waters and sugar-white sandy beaches.
The deepest lake in the U.S., Crater Lake's intensely blue waters are a sight to behold.
The blue expanse of Lake Michigan's waters, along with its sandy shores, attracts beachgoers from all over.
The largest of the Great Lakes, Superior's deep blue waters stretch as far as the eye can see.
Known for its deep-blue waters and London Bridge, this desert oasis is a popular boating destination.