What are the possibilities to go from Union Square to Hawk Hill (the other side of the Golden Gate Bridge) excluding by foot/bicycle?
Factors I am interested in are the time it takes to get there, a rough price estimate and whether the suggested possibility would be possible during the night or early morning (<6.30 am)
Is there public transportation which doesn't require a lot of switches and loss of time?
Can I expect to take a taxi just anywhere?