09/25/2026
A HUMPBACK WHALE SWAM 60 MILES INLAND โ THEN TURNED BACK TOWARD THE OCEAN
A humpback whale appeared where almost nobody expected to see one โ about 60 miles inland in California's SacramentoโSan Joaquin Delta. ๐๐
The whale, identified as โRio,โ had previously been documented 15 times over 24 years in California and Mexico. After entering San Francisco Bay, Rio traveled east into the Delta before later being seen heading west again toward San Francisco Bay. ๏ฟฝ
The Marine Mammal Center
Why did Rio travel so far inland? Researchers don't know yet. The Marine Mammal Center monitored the whale and asked people to keep their distance rather than interfere with its path. ๏ฟฝ
The Marine Mammal Center
๐ฅ Follow Whales Discovery for real, unusual and fascinating ocean discoveries.