3 ms·

Wouldn't you also have to make sure you don't rise too quickly to the surface, or you'll suffer possibly fatal decompression complications?

• lb1lf 8y ago
  The interior of the submersible is kept at surface pressure, so you'll be fine. (When diving in shallower waters, in a suit, this would be a concern; however, as you are at (or very close to) surface pressure throughout the dive - no problem.)
  • mstade 8y ago
    That makes sense – thanks!