A heavier individual will move down the slide quicker than a lighter person due to the presence of air and gravity. However, there is no clear evidence that this makes any difference to how much fun you have. Heavier people tend to roll more in water slides because there is more mass for their bodies to react to. This means they get flung from side to side more often and travel further down the slide each time they hit the dip. However, if you are heavy enough you may even be able to withstand hitting the dip harder and keeping going! The only real advantage of being heavier is that you can fly through the air further when you hit one of the many dips on most water slides. However, as a rule of thumb, if you cannot stand up after you hit a dip then you are too big for your slide. The weight limit for most water slides is around 500 pounds (227 kg). Anything heavier goes on special slides or at private resorts only. The majority of water slides are designed for someone who weighs about 180 to 200 pounds (82 to 91 kg). If you weigh more than this then you should look into buying a ticket for a smaller child first before trying a heavier model.