A red tide off the coast of La Jolla San Diego, California. Red tide is a common name for a phenomenon known as an algal bloom (large concentrations of aquatic microorganisms) when it is caused by a few species of dinoflagellates and the bloom takes on a red or brown color.ed tide is a colloquial term used to refer to one of a variety of natural phenomena known as harmful algal blooms or HABs. The term red tide specifically refers to blooms of a species of dinoflagellate known as Karenia brevis.
Innisfree is supposedly about five miles away. There is a small isle called Innisfree, located in Loch Gill in Sligo County on the western coast of Ireland and made famous in a poem by William Butler Yeats. The poem Lake Isle of Innisfree appeared in an 1893 collection of his poetry titled The Rose.
He's a hodgepodge poet, and The Lake Isle of Innisfree, published in 1893, is yet another example of his tendency to compare and contrast. It's a country-lovin' poem that actually takes place in a crowded, bustling city.