As deep as the mission requires. However realistically they're not doing more than 70 ft for a sub lock in/lock out. Most dives are combat swims meaning they are only a few feet beneath the surface.
200 feet for a minute
Weddell seals (Leptonychotes wedellii) swim at 7-9 nots
A Weddell seal can dive to lengths of 100m
Some people think that a Navy Seal Sniper is safer than Navy Seal Infantry. Some people think that Navy Seal Infantry is safer than a Navy Seal Sniper.
They can dive up to 500 feet deep.
Navy SEAL. If you can take it.
Dive Deep was created on 2008-01-28.
They can dive as long as the empire building
SEAL.
Dive Deep - Quintessence album - was created in 1971.
A Rockhopper Penguin can dive as deep as 100 m.
As deep as seal is
Navy Seal training lasts about nine months.