Bushwalk Australia

Does anyone have any suggestions for a 'good' day walk in the Blue Mountains for this weekend? i.e. when the river levels are still likely to be high?
Looking for ideas of something approx 15-25km, with some hills, and on-track.
Or perhaps the other question might be, where wouldn't you go because of impossible river crossings?

I'm also interested - we were planning Perrys Lookdown - overnight at Acacia then up Govetts this weekend - but suspect creek crossings will be too high (and the shower on way up Govetts tooo cold).

Am now considering Martins Lookout to Lost World Lookout if creek can be crossed safely - stay night and return (would like to go to Glenbrook from there - but Causeway may still be closed.