A pond in Hawaii turned so bubble-gum pink, it could be from the set of "Barbie" — but the bizarre phenomenon is no cause for a dance party. Drought may be to blame for the strange hue, scientists say, and they're warning against entering the water or drinking it. Staff at the Kealia Pond National Wildlife Refuge on Maui have been monitoring the pink water since Oct. 30. "I just got a report from somebody that was walking on the beach, and they called me up like, 'There's something weird going on over here,'" said Bret Wolfe, the refuge manager. Wolfe was concerned the bright pink could be a sign of an algae bloom, but lab tests found toxic algae was not causing the color. Instead an organism called halobacteria might be the culprit.