Yes, our new director, Randy Wisthoff, came from Omaha, and was 2nd under Lee Simmons (builder of the Lied Jungle and Desert Dome), so he has a knack for creating interesting exhibits such as this one.
On my visit to Kansas City Zoo this past summer I saw the otters using the underwater pathway, as well as one of the gibbons lounging overhead. These kind of innovative exhibits are marvellous to behold, and I can remember being entranced by penguins swimming beneath my feet at the modern Indianapolis Zoo. Of course underwater tunnels in aquariums are become quite common, so I wonder what animal establishments will come up with next?