Join park staff and docents for a tour down the Point Bonita Trail, through the hand carved tunnel and out to the Lighthouse. We will walk along a half-mile trail which is steep in places. Arrive early as parking is limited. Meet at the Point Bonita Lighthouse trailhead. Dress warmly ...
Dr. Kenneth Lum  will give Part two of his presentation on the evolution of the reflecting telescope. In August he spoke about the invention of the reflecting telescope by Sir Isaac Newton in 1668, through to the development of large aperture reflectors in the 19th Century that were hampered by poor ...
