I don't know what it is about bugs and worms and spiders (oh my!) - they creep me right out and yet if I spot them when my camera is in my hand... I just can't help myself I have to snap them in all their gross glory. This writhing little bundle of caterpillars (google informs me that a group of caterpillars is called an Army but that doesn't seem to fit right to me) were huddled together for warmth on a bench - I was VERY glad I spotted them and didn't sit on them!
When I think of Yanchep I always picture beaches, but going for a hike in the Yanchep National Park a couple of weekends ago definitely showed me that there's a lot more on offer there!