National Geographic would be a fantastic foundation for a lagoon show.
My initial idea was more an IP centric show where the more animal-based characters gathered around the “watering hole” to shoot the ish and sing songs with a more party-like atmosphere. And I’m thinking more deep cut, infrequently used characters and songs:
Alan-a-Dale (Robin Hood rooster) - “Whistle Stop”
Terk (Tarzan) - “Trashin’ the Camp”
Brother Bear - “Welcome”
Lion King 2 - “Upendi”
Mushu (Mulan) - “True to Your Heart”
Jungle Book - “Colonel Hathi’s March”
Then throw in some cameos from Nick and Judy (Zootopia), Sisu (Raya), Abominable Snowman (Monsters, Inc), Iago (Aladdin), and the like.
Suddenly, you have a unique show that hits the marketability quotient, is entirely upbeat, fun, and approachable, while remaining true to the park’s themes. Give it an original song, or use “Welcome” as a through-line because the lyrics are so on-the-nose for this sort of thing.
And, yes, I’d use Harmonious-like barges. And water screens. And River of Lights like boats. And KiteTails-like kites (that light up). It’s right there.