This little wheke that my son spotted was tucked away under a ledge about 3ft down in a tidal gut.

It was amazing just watching and it wasn't until I got home and looked the wheke up that I realised how seeing one is not common :)

The big round tube to the right of the eye is where the wheke breathes.

I'm lucky I didn't get too close and I read that somone from Wellington while photographing one had their camera taken from them and they spent time chasing the wheke to get it back! LOL