how long do you spend under the water at a good time ?

Question: how long do you spend under the water at a good time ?
- Keywords:
  time,
  water
Asked by alison_halpin12 to Jenny on 10 Mar 2017.
- Jenny Hanafin answered on 10 Mar 2017:
  
  It depends – the deeper you go, the denser your air becomes because of the increased pressure, so it doesn’t last as long. If you dive to 20m you can stay for about 45 or 50 mins, but if you go to 40m you would only have 15 or 20 minutes.

Question: how long do you spend under the water at a good time ?