Smelled fumes today

I uncovered my new boat today and opened the back hatch (battery access,
etc..) and it smelled like fuel a bit.

Is this normal?
It seems to smell under the deck in other hatches also.
It's not overpowering, or all that strong, but I thought I would ask.

Also, does anyone know where the fuel tank is on this boat?
It is a 2005 Lowe 160W and the filler spout is just in front of the
cockpit (right side) on the rail.

Thanks