Delta and Dawn, also known as the Delta whales, are two humpback whales, a mother and her calf, who entered San Francisco Bay in early May 2007. They swam up the Sacramento River approximately 90 nautical miles (170 km) upstream from the Golden Gate, about 20 miles (32 km) farther inland than Humphrey the Whale had gone two decades earlier.
Delta and Dawn, also known as the Delta whales, are two humpback whales, a mother and her calf, who entered San Francisco Bay in early May 2007. They swam up the Sacramento River approximately 90 nautical miles (170 km) upstream from the Golden Gate, about 20 miles (32 km) farther inland than Humphrey the Whale had gone two decades earlier.
Source: Wikipedia "Delta and Dawn" · CC BY-SA 4.0
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