Queenstown Harbor isn't half bad...is the River the one that the 2nd hole is along the marshland/wetlands?
I played it in driving rain, played just the front nine and bagged it, got a rain check and came back a month later and played the whole 18 - I recalled it being better on the rainy play. Worth playing if you're in the area, which it sounds like you are....probably not worth going too far out of your way for it.
The other course at QH was definitely inferior but not awful....just a kid sister.