Just outside Pape’ete’s urban sprawl, the Lagoonarium is a pleasant tourist trap with a meshed-in area of lagoon with a modest underwater viewing room; it’s reached through a giant (though crumbling) concrete shark’s mouth. The entrance to the Lagoonarium is part of the Captain Bligh Restaurant, and if you eat at the restaurant there’s no charge to visit the Lagoonarium.
Lagoonarium
Tahiti