updated 05/08/2014 AT 6:00 PM ET
•originally published 05/09/2014 AT 8:45 AM ET
There are times in life when you just have to dive right in – and that was a lesson four African lion cubs at Smithsonian’s National Zoo learned earlier this week.
The cubs, born March 10, were tasked with passing a swim reliability test on Tuesday. And they nailed it! (Watch the test in the video above.)
National Zoo staff say that the 10-week-old cuties were all able to keep their heads afloat, swim to the shallow end of the moat (2½-feet deep!) and climb back onto dry land, reports USA Today. That means they’re almost ready to explore the terrain of their Washington, D.C., habitat with their mother, 9-year-old Shera.
In other words, they’re basically ready to take on Michael Phelps.
Visitors will be able to check out the mini swimmers when they make their mid-June zoo debut after all vaccinations are administered.