Narrative:

I was on a bay tour of the golden gate bridge area. Upon completion of the tour; I flew eastbound toward berkeley at 1500 feet. When north of the alcatraz; I suddenly saw another C172 flying westbound at the same altitude in a path that is about 500 feet north of me. Flying in opposite direction meant very little time to react; and I quickly banked right to give us some more distance. There was also a tfr in san francisco; so I was careful to stay north of alcatraz to not violate the tfr. I was on flight following with norcal but did not receive advisory from ATC about that traffic; and do not think the other aircraft was on frequency. I felt the encounter was a bit too close for comfort. Some reflection in hindsight: do [a] better job in visually scanning for traffic; do not assume other VFR guys are on frequency or ATC will always advise traffic; be extra cautious at sightseeing hotspots; especially when there is tfr that might 'funnel' traffic; do not back myself into a corner against the tfr or bravo boundaries.

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Original NASA ASRS Text

Title: C172 pilot reported an airborne conflict with an opposite direction C172 in the vicinity of Alcatraz Island.

Narrative: I was on a Bay tour of the Golden Gate Bridge area. Upon completion of the tour; I flew eastbound toward Berkeley at 1500 feet. When north of the Alcatraz; I suddenly saw another C172 flying westbound at the same altitude in a path that is about 500 feet north of me. Flying in opposite direction meant very little time to react; and I quickly banked right to give us some more distance. There was also a TFR in San Francisco; so I was careful to stay north of Alcatraz to not violate the TFR. I was on flight following with Norcal but did not receive advisory from ATC about that traffic; and do not think the other aircraft was on frequency. I felt the encounter was a bit too close for comfort. Some reflection in hindsight: do [a] better job in visually scanning for traffic; do not assume other VFR guys are on frequency or ATC will always advise traffic; be extra cautious at sightseeing hotspots; especially when there is TFR that might 'funnel' traffic; do not back myself into a corner against the TFR or Bravo boundaries.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.