Nassau Astronomical Observing Station is a primary educational feature of Observatory Park. It was acquired as part of Geauga Park District's purchase of 281 acres from Case Western Reserve University (CWRU) in October 2008. The station's Warner-Swasey deep-sky 36-inch mirror research telescope was refurbished for educational and research use by the public. With funds raised by the Foundation for Geauga Parks, the Nassau Astronomical Observing Station was restored and reopened to the public in 2017. Nassau Station funding was the final phase of the capital campaign for Observatory Park, with a fundraising goal of $1,175,000.