So, I would definitely recommend those who are fine to take a approximately 1 hour walk early in the morning (start at around 4 am), to do their sunrise viewing at Seruni Point!! You also get to see the wonderful night sky filled with stars (of course, provided the skies are clear) as a bonus :).
To get to there, take the right fork heading to Cemarah Indah Hotel, there is a "gantry" like structure at the fork indicating Seruni Point. Keep following the paved road, passing the antennae (map is found in wikitravel), finally, near the end of paved road is a lookout still accessible by car. This is not the Seruni point yet. Keep going until the paved road ends.
Look for some steps at the end of this paved road and you will soon get to the viewpoint!