Treasure hunt on Treasure Island

Treasure Island has been attracting folks for its phenomenal Bay Bridge and SF view.
But today I was looking for some thing more than usual and found this mystic location
with stunning view of BayBridge. This place is at very top of the Treasure Island and is in restricted zone. Initial I was a bit taken aback by "No Trespassing" sign, But had a small chat with locals and found that having a quiet presence with no mucking around can lead you to panoramic photography. EnJoY!!!