Early in the movie Ashley is wearing an over-sized powderkegblue (UCLA) football jersey #7. Mark Harmon was the starting UCLA Quarterback - he wore #7.
Most of the underwater work was filmed in a "dry for wet" smoke filled stage with special lighting and filtration to make the setting look like actual water.
Film locations included a 163 foot stern-wheeler, the SS Moyie, which seemed a bit unreal for a town with only 800 people living in the area. This vessel was used as "Joe's Orky Emporium", a top-heavy tourist attraction that exploits the legend of Orky to the hilt.
The creature Orky was in reality a huge cable operated puppet which required twelve operators to bring him to life.
The role of Josh was based in part on the relationship that developed between writer-producer-director Rick Stevenson and young actor Joshua Jackson while Stevenson was producing and Jackson was starring in Stevenson's first film 'Crooked Hearts' (1991). Jackson said about his role: "I'm on this trip to try and have some relationship with my father, but in reality I'm on the verge of not wanting a father anymore. In Josh's mind, this trip is one last attempt at bonding with his dad. Then there is the aspect of having a little sister who believes in weird stuff. At first I don't pay any attention to her. She's dumb and so are her ideas, but out of pure boredom I start paying attention to her and discover she's not so bad after all. The minute I let my guard down, she gets me into all kinds of trouble trying to save Orky.''