Hi Rob.
Yep, we were on the other side of the park overlooking the lake wall.
https://hallsgaplakeside.com/explore-lakeside/parkmap/
If you look at the park map, I think we had sites 82,83 & 84. We're going back again in September school holidays and have got the same sites again. It's good for us as you've got a little dry creek bed out the back of the sites so it's a good place for the young kids to roam around and explore. Also means that you have heaps of room too!
From memory, the other side of the park looks over some farm land, so it's some nice flat land with the mountain range to your right. It's pretty spectacular!
As for photos, don't know. I'll go back through the thread and see what I posted and see if I have any others.
The facilities have changed since we were there last year. They've done up the bottom amenities block and they've also added in the second pool so it's a little different from last year.
Don't forget to pack your bathers! The heated pool is really good!