A Power Kki or Wakeboarding boat is a specially designed boat for pulling water enthusiasts on skis or boards. These types of boats have powerful engines, typically ranging from 200 to 800 HP, with a direct drive or a surface drive propulsion system. The design of power ski boats typically integrates a deep-V hull, allowing for more control and stability while towing skiers or wakeboarders. Most power ski boats also have at least one built-in ballast tank, which can fill and empty while the boat is in motion, creating more of a challenging wake. For the more serious wakeboarder, additional ballast tanks may be built into the boat to create even larger and more challenging wakes.