You find the old photo at the lighthouse, trade it for the Scuba diver outfit, and then go back to the lighthouse. Put on the scuba gear, go into the water and and click on "dive". Find the lost lobster cage and give it to the old sailor (Cap'n Salty), who will give you the lobster and the jet ski key. Use the lobster as pliers to turn the lighthouse light.
on top of the lighthouse
It needs to be dark
you use it to turn the light on the lighthouse
The light house is next the next place after the playground. If you mean Big Nate Island.
you get a lobster, then you go to the lighthouse, and use the the lobster by the light
Use a lobster to grip the crank on the lighthouse light. (see related question)
To get the seagull away, you have to turn the lighthouse light. Use the lobster.
you use the lobster to pinch the lighthouse light and then it moves and the seagle moves!
On Big Nate Island, you use a lobster (no kidding) to turn the lighthouse crank. (see the related question below)
You use it on Big Nate Island by the lighthouse.
At Big Nate Island. You have to keep going right on the island.
It;s floating in the wind next to the lighthouse