Scientists say they have identified what could be the deepest blue hole ever recorded, located off the coast of the Yucatán Peninsula. The underwater sinkhole, known as the Taam Ja' Blue Hole, has been measured to a depth of at least 1,380 feet (420 metres), according to a study published in Frontiers in Marine Science. Researchers say the true depth remains unknown, as … [Read more...] about Scientists identify deepest known blue hole off Mexico’s coast