TV Mysteries of the Deep The Best of UnderSea Explorer Mysteries of the Deep The Best of UnderSea Explorer /10 by 0 users The UnderSea Explorer dives into the enigma of marine life and uncovers the secrets that live among our sea-dwelling friends. From the elusive and mysterious Galapagos Islands of South America to the majestic Great Barrier Reef in Australia. Details Casts Posters Images Title Mysteries of the Deep The Best of UnderSea Explorer Alternative Titles First Air Date 2011-11-01 Last Air Date 2012-07-24 Number of Episodes 39 Number of Seasons 1 Genres Documentary, Networks , Casts Plot Keywords ,