The lighthouse light can be turned using a lobster to grip it. To get the lobster, dive for Cap'n Salty's lost lobster trap.
(see related question)
It needs to be dark
You can not move it.
below you
you can not. you have to go in it.
There is a lighthouse on Big Nate and Vampire Curse Island.
on top of the lighthouse
A crab.
you go to big nate island them just keep following the arrows till you get to the puffin point then the big red and white stripped thing is the light house
shine the light on it from the light house with thlobster
Al the way 2 the right of the island
shine the light on the bird with the lobster
on big nate island, in the air, next to the light house