 There are a number of natural points of interest throughout the UCSC grounds. The "Porter Caves" are a popular site among students on the west side of campus. The entrance is located in the forest between the Porter College meadow and Empire Grade Road. The caves wind through a set of caverns, some of which are challenging, narrow passages. Tree Nine is another popular destination for students. A large Douglas fir spanning approximately 103 feet (31 m) tall, Tree Nine is located in the upper campus of UCSC behind College Nine. The tree had been a popular climbing spot for many years but due to environmental corrosion and fear of student injuries, UC ground services sawed off the limbs to make it nearly impossible to climb. For specific directions, reference: directions to Tree Nine For the less experienced tree-climber, students also frequent Sunset Tree located on the east side of the meadow behind the UCSC Music Center.
