Shower/Pool-side floor

Which wood is best for an extreme amount of chlorinated water - Ipe, Redwood, Teak or Cedar?

This is basically going to be near a pool and perhaps a matt (wood planks) in a shower. The wood is not pressure treated.

I have read here that Ipe will need to be finished every 6-12 months, but not sure about the other woods used in these wet conditions (teak vs. redwood vs. cedar).

Also, I am concerned about finishes clogging the drain (oil based building up or peeling of others). Would Armstrong Clark Ipe be a good choice for all exotic wood (Ipe, teak)?

Thanks!