Us navy submarines

Submariners spent months at a time couped with each other, and that kind of isolation breeds a number of interesting habits.

From bathroom rules, sleeping arrangements, and daily physical activity, here are the most surprising aspects of living aboard a submarine.

Sailors have unique ways to get under each other's skin. A comment that may seem harmless to an outsider might be a jab to a shipmate. Just add the word

Find out why the Virginia-class fast-attack sub has been called the "most modern submarine in the world"

Getting assigned to your first sub doesn't make you a submariner and once you become one you'll find yourself in a social structure unlike any other.

Divers from SEAL Delivery Vehicle Team Two (SDVT-2) undergoing 'locking out' training with USS Hawaii (SSN 776). Locking out is a procedure in which SEALs exit a submerged submarine, along with their mission equipment. The reverse procedure is known as 'locking in'. These are arduous and dangerous procedures but are worth it since they allow for a completely clandestine stealth infil/exfil of SDV Teams.

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Every branch has its own policies, years ago that wasn't the case. The U.S. Navy has a long tradition of sailor tattoos.

Some people are lucky enough to swim with dolphins at some point in their lives — and then there are even luckier people who get to swim next to a nuclear submarine in the open ocean.

Find out why the Virginia-class fast-attack sub has been called the "most modern submarine in the world"