THERE WILL ALWAYS be a portion of divers for whom scuba is strictly a warm-weather sport. As soon as the first fall chills hit, they either hang up their shorty wetsuits for the season or head to the tropics.
Cold water, however, is where the real adventure happens. The cold-water sites outside of the equatorial resort belt contain millions of wrecks and unusual wildlife that the resort crowd never gets to see.
From Atlantic ship graveyards to swimming with schools of hammerheads, being comfortable with chilly water opens up a world of possibilities. These are five of our favorite reasons to brave the cold.