The panoramas from the observation platform are magnificient, looking across the Yarra Valley, as far away as Port Phillip Bay, the You Yangs, and the Macedon Ranges.
The fire/communications tower is located at the summit, and is easily visible from most of greater Melbourne.
Public vehicular access to the summit is prohibited, and visitors walk the gated 3 km (return) track which starts at a car park at Monda Rd, reached by a winding and steep drive up from the Myers Creek Rd from Healesville.
This track has recently been reopened (October 2009) following the devastating bushfires of February 2009 which ravaged the surrounding forest.
There is an alternative very steep 8 km walking route (one way) which starts at the Donnelley's Creek Weir. As at the time of writing, that track is closed to walkers, due to the fire damage of Black Saturday, February 2009.
I visited the Summit on October 19, 2009.
See all of my Photos of this trip, which show the burnt and blackened forest along the main access track, the communications facility, and several beautiful views from the lookout platform.