I think it would be awesome if Disney had a salt water pool! I work at a property that has one and always think about how awesome it would be to go swimming in a salt water pool...
My dream pool would be salt water, waterfalls, lazy river, sandy bottom, rocky edges and ledges to sunbath on, a nice big adults only cavern with a bar/barstools (disney does not have any pools with a pool bar like some resorts on tropical isands), and beachy music playing through hidden speakers... Ah yes... Disney should take that idea and run with it..
I have only been to Boardwalk pool... It's alright....