Visualizing things is more effective than imagining. So how about giving a visual experience to that roller coaster ride to the people before they even go for it? People can experience the ride without physically being present at the park. You can customize the park as you want. Also changing the environment dynamically makes it all more interesting. Showcasing this application at public places like malls and cafes will be a great advertising strategy. More the people watch the glimpse of what the theme park is offering, more the people will be curious to go to the actual theme park. This will attract great numbers of masses who are convinced that your park is a real deal package. Experience the real life sensation of the roller coaster ride in your VR Headset.