Do you ever wonder why your sit-on-top kayak has holes in it? If so, you're not alone. It is important to note that these are scupper holes, and although they do allow you to get your bum wet, they also allow water to escape from the cockpit, which means that no bailing is needed.
The only thing that you may want to do is to plug the holes if it seems that your kayak takes on too much water from beneath. The use of scupper plugs is also recommended when the temperature of the water and air are low, as well as when the air is moist.