A playground on top of a volcano cinder cone? Yup, that's here. The cinders, or glassy rock fragments, unearthed in the park's construction, were used to surface the respite's roads; the ones leading to the top are closed to cars, but popular with cyclists. They're also popular with cruisers—each August there's an old-fashioned soapbox derby. Picnic tables and tennis, basketball, and volleyball courts make Mt. Tabor Park a popular spot for outdoor recreation, but plenty of quiet, shaded trails and wide-open grassy lawns with panoramic views of the downtown skyline appeal to sunbathers, hikers, and nature lovers. The whole park is closed to cars every Wednesday. Just down the hill on the west side of Mt. Tabor, you'll find the lively cafés and restaurants of the hip Hawthorne District.