It’s good for your skin (or so I’ve heard).

I’ve been wanting to do this one ever since I started Koala Hugs :-)

↓ Transcript
[At the beach]
Cyn: It's just mud!
Joe: Sorry, Cyn. We should have checked the tides.
Cyn: But I wanted to try out my new gear!
Joe: C'mon kids. Let's go look for shells.
[Later]
Joe: How's the gear, Cyn?
[Cyn, face down in mud, gives a thumbs up.]