It can't be a thriller because everyone on the planet knows they are treasure hunting ... it can't be a love story because there are no lovers ...someone said it was great because you got to see cheryl ladds boobage ... i've seen them in the raw and they don't look near as good as propped up by an underwire bra ... someone else said the underwater photography was fantastic, compared to what ? ... every foot of the film i saw was out of focus on land as well as in the water ... where you are diving is never a big secret as air bubbles always give you away ...if you want to see a treasure dive film that is beautifully done, see the deep (1977) with nick nolte and jacqueline bisset .. at least she has the real goods to show and you can rely on eli wallach and louis gossett to be the really evil crooks