Planckendael has some excellent aviaries in this category: African waterhole walk-through aviary, Australian waterhole aviary
Antwerp has Vriesland (arctic penguin),
a huge sturgeon/Chinese merganser underwater view,
a historic aquarium,

Aquarium - Coral reef
some water themed exhibits in the Reptile house

Reptile House - American alligator exhibit
and a Coypu exhibit.

Left part of the Coypu enclosure
The Birdhouse has Black crake on show...

Black crake (and Golden-breasted starling)
...while about half of the inhabitants of the Cape Buffalo aviary are wading birds that fit into this category.

Cape Buffalo walk-through aviary (white-faced whistling duck, hamerkop, Southern ibis, Abdim's stork, Hadada ibis, Blacksmith's plover, Sacred ibis, Abdim's stork, Fulvous whistling duck, Yellow-billed stork)
The historic Rotunda aviaries have water-themed exhibits: European wading birds, African penguin and American flamingo.
Unfortunately the Hippo House is closed and the seals haven't arrived yet (Dalmatian pelican have temporarely replaced them)