[Lacus reaches for Rebecca's hand, somewhat testing the tactile features and somewhat assisting her.]
You'll have to use something solid. I left the area clear, but it's easy enough to have a surface appear... [She lifts her free hand and just above it, a small floating tile appears. Lacus pushes off of it, sending them gently back toward the grass.] Typically zero-g rooms are smaller so you don't have to float as far, but here we have the flexibility to do as we wish.