Many water sports centres, both standalone ones and those that are part of a resort, offer this activity. Sometimes, you can even find individuals along certain beaches in Sri Lanka, such as the ones in Galle, who operate their own Jet Ski and rent it out to tourists for rides of around 15 minutes in duration. Usually how it works is that you don your life jacket, get a briefing of a few minutes on how the Jet Ski is operated, and what safety measures you must take, and then you set off on the Jet Ski along with your instructor. Depending on your preference and skill level, and how fast you want to go, your instructor may either sit behind you and allow you to drive the Jet Ski or sit in front of you and drive it themselves. If they are confident that you are an experienced user, and are unlikely to crash and cause harm to the Jet Ski and yourself, they may even let you take the Jet Ski out on the water unaccompanied.