What type/model of plane is this?
It looks like a Cessna 208 Caravan to me:




These are single-engine high-wing turboprops, useful for a variety of cargo and passenger-hauling tasks. Here's what a 208 in seaplane configuration looks like on the outside:



Your photo looks like an older plane with the original radio stack and no glass, unlike these newer cockpits. In addition, somewhat startlingly, the right-hand control column and yoke have been removed, but they bothered to keep the copilot's 6-pack. That's odd, from my sensibilities, and it tells me the plane was altered in the cheapest possible way for use as a pure short-range passenger ferry. The right-hand seat can now accomodate an extra passenger (and becomes the best in the house for enjoying the view), without the possibility of that non-flier binding up the pilot's controls.