Does anyone rent these in San Pedro?

I think TMM has some clear bottom kayaks.

They do and they do rent them out. Just go to the office by the road entrance to BC's.

Does anyone know of any s/h kayaks for sale? Or available for cheap long-term rental?

what the heck is a s/h

does it mean single hand?

s/h is a standard abbreviation (I thought) for secondhand, ie. used.

I guess that shows how much I rummage around.