N820AK, Cessna 180K, 1977 model. It is a 6 seat configuration, including the pilot. Extra room for baggage and gear is behind the rear seats.  It came from the factory set up for skis and floats.  I have personally owned the plane for the last 17 years. 

N820AK is equipped with Federal model 3200 hydraulic main wheel skis and a Federal 3000 tail ski in the winter.   In the summer I switch EDO model 2960 straight floats and keep the plane in it's slip at Lake Hood.  The engine is a Continental O-470U turning a 90 inch seaplane prop..  The airplane is equipped with a Garmin GPS and two com radios and is certified to fly on instruments although the VORs, ILS and ADF are rarely used. 

The engine is preheated in the winter with a thermostat controlled “Little Big Heat” heater placed in the engine compartment.  If electricity is not available it can be preheated using a camp stove carried in the extended baggage.