Unexpected visitor(s)

What were our dogs barking about? It was nearly dark as I looked through the screen door, being very surprised to find this Eastern Long-necked Turtle on our driveway. These are native to eastern Australia, living in streams and fresh water wetlands.

With a carapace of about 20cm length, this was almost fully grown. I'd previously only seen a very small one around here, so meeting this one was quite a thrill.

After taking these photos I picked it up by the carapace and returned it to the nearby wetlands. To return there itself, it would have needed to cross a road where it already had risked life and limb. More images in PiPs.

SEE UPDATE IN COMMENTS. To my surprise there was a second visitor! (PiPs also)