on the left side of the boat near the top edge of the boat even with the mast there are 2 circles 1 is a little smaller than other, on my boat the ericson 25 what ever they are rusted off....i painted them for now but they appear to be rubber plugs or something...i see them in pics of other boats,,,they are in the same spot as mine. let me go over this again, this on top of the boat near the edge on the left side even with the mast. i cant see what it is from the inside of the boat either...also i found a key that says deck key,,, and cant find where it supposed to go,,,or open. can anybody tell me these things please.....thanks chip