LOVE Your Park Event, Friends of Princeton Open Space Love Your Park Event Friends Of Princeton Open Space Princeton area community website with events, comprehensive business listings, and local information Share: 9:00 AM - 4:00 PM Join Friends of Princeton Open Space for LOVE Your Park Day at the Billy Johnson Mountain Lakes Nature Preserve in Princeton, New Jersey. During this outdoor work session, volunteer stewards will work under the guidance of the Natural Resource Manager using pruners, loppers, and hand saws to remove invasive vines and shrubs from the woodland habitat that borders the park entrance. This work will help to ensure a future forest canopy, provide native habitat for wildlife, and enhance the educational and aesthetic experience for visitors of the preserve. We will celebrate a LOVE for nature with this beautification project.