We took a drive up to Wentworth, to see the confluence of the Murray and Darling Rivers. The lighter-coloured water in the foreground is the Darling, which runs for 1390 km, draining southern Queensland and western NSW before it joins the Murray here. The 2575-km-long Murray River arises in the Australian Alps. It and its tributaries drain much of NSW.

Magnificent colours on the bole of a River Red Gum, Eucalyptus camaldulensis, 3m across. This is the dominant species along inland waterways.

We took a trip on the PS Melbourne, and spotted these swallow-nests under a river-cliff. I love the colour-contrasts.

Walking in Mildura is a great way to see beautiful gardens and street trees. This bottle-brush is just huge, and a great climbing tree too, our boys told us. The canopy is about 8m across and the tree is at least that height. I can't tell you exactly what it is, but I assume it is a type of Callistemon viminalis.

Around the corner is this extraordinary Queensland Bottle Tree, Brachychiton rupestris. Quite a number of these trees were planted in Mildura in earlier times, but not all have flourished like this one.

A close-up of the distinctive trunk:

But we also discovered a terrible secret lurking in a quiet back street...

You saw it here first: in the next series, Dr Who will have to save Australia from Daleks! Stone the crows!


















