Is swimming in a mixed pool allowed if women are covered?

I doubt that males are permitted to swim in a pool with women who are wearing a swimsuit or bikini even if they averted their gaze. The environment is haraam. Now what if the women were wearing the Islamic style of swimwear - is such a mixed pool still haraam for Muslim males? It goes back to segregation for the sexes in a pool or outside the pool. Some scholars may say the swimwear is too tight so fails for a suitable hijaab also.