cant you just make an no-collide no-render brick and put a water brick on top of it, so that you're under the brick without swimming? ._.
at first i thought ohno this guy wants to have floating bricks phew
then how would he walk underwater?
you're inside the non-collided brick
He means as in an underwater map, a brick or something acts like an air pocket, so underwater buildings have no water in them.
however, i don't think bricks can alter maps.
Impossible