Following a hefty $10 million renovation project that upgraded their aquatic home, seven bottlenose dolphins have made their grand return to the Seven Seas exhibit ready to dive into their spruced-up digs, according to the Chicago Sun-Times.

For 15 months these dolphins, the ages running from 18 to ripe old 50, swam the temporary waters of Minnesota Zoo—under the watchful eyes of their usual care team—while their home got the upgrade but now, back in Chicago, they are settling into an environment that's got rock work structures, bubbler systems, and a whole buffet of new features designed to promote their inherent dolphin-y tendencies, FOX 32 Chicago reports.

Yet the public, eager as they may be to witness these marine marvels in action, will have to park their anticipation until March 25, when the habitat officially opens. This delay allows the dolphins time to acclimate—and they'll undoubtedly need it given the suite of upgrades that await them.

"One of our priorities in the project was to add a variety of dynamic elements to the dolphins' habitat to enrich their daily lives," Michael J. Adkesson, president and CEO of the Chicago Zoological Society and director of Brookfield Zoo, boasted in a statement obtained by Chicago Sun-Times, emphasizing the world-class care that these dolphins will continue to receive, which sounds all well and good especially when you consider the inherent challenges of mimicking the vast and unpredictable ocean.

Those interested can anticipate reconnecting with the likes of Lucky, 50; Tapeko, 42; Allie, 36; Kai, 29; Spree, 21; Noelani, 20; and Allison, 18, during the zoo's "Dolphins in Action" presentation starting March 22, and can get a closer look at the graceful gliders in the Underwater Viewing Gallery later that week, with the funds for this impressive project having been sourced from the American Rescue Plan Act through Cook County, the Forest Preserves of Cook County, and the generosity of donors, FOX 32 Chicago helpfully detailed.