B-Roll for Seabase

In today's world, people are still astonished by how much footage is shot for any motion picture. But what is far less known is this has also been a common practice for theme park attractions since the premiere of the Enchanted Tiki Room in 1963 where elaborate lighting and film setups were used to present the tropical paradise in the best possible way. Although The Living Seas was much more realistic in its depiction, it was just as comprehensive, taking a few days to complete. 
This footage would be used for various marketing purposes, not only to showcase the (then) new pavilion but also to be recycled many times over for montages, VHS (and later DVD) souvenirs, as well as multiple campaigns for literally decades after opening.  

The above is a presentation of the entire B-Roll complete with multiple takes and production slates. While it was shot silently, I've added and soundtrack of location-specific music and effects from the Future World Soundtrack Series Album.

Culling through 12 minutes of footage and 37 clips, here is a "Seas Sizzle Reel" of the "wonders below the surface".