The shallow water and remarkable visibility in the seas surrounding Bermuda make diving here an unforgettably vivid experience: a typical dive allows plenty of time to explore the coral encrusted hulls, barnacled cannons and holds populated with a kaleidoscopic array of parrot fish, barracuda and angel fish.

BBC: Wreck diving in Bermuda

"For the hardcore fans that have played the games, read the books, read the comics, have the consumer products, and are fully intending to dive into 'Halo 4, ' this is very much an additive experience, " Feldman said.

CNN: Web series builds anticipation for 'Halo 4'