Beach volleyball does!  It's not your typical indoor 6 on 6 volleyball.
  These athletes can move, there aren't some that just come in to pass balls and then rotate out.
  Each player has to be able to do everything from passing, setting, serving and hitting.
 

Because of the difficulty of jumping out of sand combined with the number of times they have to jump.
  Let's the Olympic player phil dalhausser for example.
  Everytime he serves the ball he does a jump serve.
  He also blocks for every play, so when he serves he will be jumping at least twice for that one point.
  They play best of three games and go to 21 the first 2 and then to 15 on the third.
  If they are all pretty close games that will mean that he will jump about 110 times against one team.
  They play up to 4 teams in a day which means 440 jumps out of deep sand and as high as he can every time.

You need to first work on your leg strength.
  Do squats and other leg lifts with weights until you are comfortable with squatting 1.
5 times your body weight.
Once you have the strength you will then focus on doing plyometric exercises.
  These will consist of fast bounding movements such as jumping onto boxes.
  Try to do at least half of your workouts in the sand because that will relate to your game better.