This paper presents preliminary findings showing how Twitter usage in public parks and adjacent areas can help measure the impact that the park and its design has on the user experience. As an initial test of the potential for these applications, the paper compares Twitter user updates in two park areas in New York City: Prospect Park and Central Park. The results show that Twitter is used differently in the parks than it is near them. Results also reveal differences between the two landmark parks. The paper finishes with an exploration for ways that Twitter can be used as a meaningful tool for measuring ways that park design impacts the visitor experience in the park.