lloyd bridge a mike nelson and his boat be all the star of this series . what make it so good to me when i watch it be the real feel of go underwater . the show exhibit a youthful energy energy for exploration under water which be infectious . the show be educational a well show the viewer thing about scuba diving from someone who appear to be a consummate pro and mike nelson . there be excellent show and and the program always appear to be well produce . grant and the drama in the script sometimes hit the same note in more than 1 episode but each show hold it own with any other show produce during this era and the infancy of american television .