Thanks to all for the responses. It would now appear that Molonglo Reach occurs within the boundaries of the Jerrabomberra Wetlands, that is up to the northern bank of the Molonglo River. Molonglo Reach Park is the strip of land between
the river and Morshead Drive. For geese that are reported on the land they are designated Molonglo River Park, if in the river then Jerrabomberra Wetlands, but does it really matter!
Incidentally, this stretch of the Molonglo River is the only place in the Jerrabomberra Wetlands where canoeing is allowed.
Chris