How much fitness is required to do the Divemaster Course?

As you can imagine, the physical demands of the PADI Divemaster Course does require a certain level of fitness. You won’t need to be an Olympic athlete or train a lot for the course, but it is a requirement that you are able to swim 400m comfortably and have enough strength to carry 2 full dive tanks over a short distance (100 metres or so). 

It may be useful to practice your swimming prior to the course if you aren’t already confident.