Seabreeze Point is a rather large outdoor gazebo/pavilion towards the end of the boardwalk. You pass it as you are walking to the Intl gateway into Epcot.
I was married at Seabreeze Point in 97' and it was a beautiful ceremony infront of the lake with my wedding guests and wedding cake with Mickey & Minnie topper. I have some great pics of the YC/BC in the background of my wedding pictures taken there.