Engineers Australia have just posted their most recent list of hosted conferences but there are two conferences that stand out as water engineering focussed:

IAHR 34th Biennial Congress
Including the 33rd Hydrology and Water Resources Symposium &
10th Hydraulics in Water Engineering

Call for Abstracts close 15 July 2010

When: 26 June – 1 July 2011
Where: Brisbane Convention Centre, Brisbane Australia

Pacific 2010 – International Maritime Conference

When: 27 – 29 January 2010
Where: Sydney Convention Centre