Algae blooms, like the one shown here in London, are not uncommon in warm weather An outdoor swimming lake has been forced to close temporarily because of algae on the water. Alderford Lake ...

A bioluminescent algae that appears pinkish-red in the day and glows blue when ... experts from the Derwent Estuary Program warned that swimming in the blooms could cause skin irritation.

the Karanga Plaza Pool on the Auckland waterfront received a second red pin on Safeswim, indicating that levels of faecal bacteria or toxic algae bloom exceeded national swimming guidelines.

the Karanga Plaza Pool on the Auckland waterfront received a second red pin on Safeswim, indicating that levels of faecal bacteria or toxic algae bloom exceeded national swimming guidelines.