Best wet weather day walks

I'm just wondering if anyone has any good ideas for day walks that can be done when it's raining and there are no views to be seen from the peaks. I'm thinking waterfalls, rivers and stuff that looks speccy despite visability being only 100-200m. So - any ideas? (oh and if you could say roughly how long they take that would be great.)
To start off:
Meander Falls - 5 hrs
Winterbrook Falls - 5 hrs
Other Ideas from below:
Kelly Basin - 3-6 hrs
Bluff River Gorge - ??
Montezuma Falls - 3 hrs
Lees Paddocks/Oxley Falls - FULL Day
Lobster Falls - 1.5hrs
Liffey Falls - ??
To start off:
Meander Falls - 5 hrs
Winterbrook Falls - 5 hrs
Other Ideas from below:
Kelly Basin - 3-6 hrs
Bluff River Gorge - ??
Montezuma Falls - 3 hrs
Lees Paddocks/Oxley Falls - FULL Day
Lobster Falls - 1.5hrs
Liffey Falls - ??