The "black circle" is a sort of plug/lid. Inside you can store gear waterproof and secure. It also can provide a spot for air so
it don't sink! There is also one up front. There are also straps on top to place luggage, which can be wrapped in a dry bag...Such a vessel is in my dreams sometimes. I stop in the REI store to drool on them an occasion. Something similar could cost $400 into thousands depending on the manufacturer, used or new, popular brand, or quality.
I have to justify expense and storage opposed to available water resources determining how much use I might get. So, in Arizona, I need a "deal."
I found a place that will rent them here in Tucson, so I'll figure that into my goal to do a nude two day trip down the Gila Box.
I just gave away my faltboot, because I was neglecting it. I may get a blow up kayak, one of these days. Great upper body workout. I also have a pair of naturist friends with four of them, but they aren't all "sit down in" instead of ,"sit on top."
There's just room for one passenger.
Yea, I'm sitting here, wiping my chin, to keep it off of the key board. That is a dreamboat, with all the features that I would want...maybe a two seater for DF accompaniment.
Jbee