Any seaplane accessible Restaurants in the area?

[Piston]

Does anyone know of restaurant in the Lakes Region on any of the bigger lakes that is accessible by seaplane?
(Aside from Alton Bay)?

My dad's birthday is coming up and I have a friend who owns a seaplane a short distance away, I thought it would be cool to have him fly into Alton Bay, pick us up, and fly somewhere to a restaurant as a surprise to my father.

My friend with the seaplane may be the best bet to check with, but you guys never cease to amaze me with local knowledge