Bushwalk Australia

Currently planning a Kangaroo island trip in either September/ October (hopefully)

Since it's not hikable overnight, planning to do it via the KI Caravan park and be shuttled in and out each day.

I'm just wondering if the middle 3 days are the best, and if it's worth dropping day 1 and 5? What the scenery is like, pros and cons for anyone who has been?

Hubby isn't a fan of long days inland walking in the scrub.... so unless there's decent views on and off, I'm not sure he'd be too keen on day 1 and 5 from what I've read.

Any other recommendations on side trips that are a must etc?

Hard to say without knowing what it looks like now.
Day 1 was mostly forested.
Day 5 is quite short, very nice if done early morning.
The trip to Admirals Arch is worthwhile but you can do that by car afterwards.

Which hike are you thinking of doing?

The wilderness trail

If on a time limit days 2, 3 & 4.

If really tight do day 3.