Both the men's and women's team are staying on a 16,800 ton behemoth called the Silver Cloud -- a luxury liner that features a pool, gym, cigar lounge, bar ... the works!
So ... why?
A rep for Team USA tells TMZ Sports, "Hotel rooms were scarce in Rio, we ended up getting some rooms on the ship for our teams."
"This is not something new, in 2004 we stayed on a ship for the Athens Olympics. The U.S. men’s and women’s basketball teams are not the only guests on the ship, there are others outside the organization.