Thanks guys.
I will be using it between dunsborough and busselton. Geographe bay is usually crystal clear water. At the moment i am using an inverse periscope, basically just a pvc pipe with a lens that i dip in the water from the boat. Its like snorkelling and works well, however, i need to get down to 30m and look around.
At the moment i am building this:
www.spineshot.com/rov2-2.htmlBut still a few months away from completion.
Looks like i wont buy that yellow thing if its terrible quality.
Will just put a CCTV camera in a water tight tube.
Cheers