In Nancy Drew: Sea of Darkness, Nancy must snoop through Elisabet’s bag. To do this, you will need to create a distraction. Go to the wheelhouse on the ship, and use the radio to call Alex. Tell her that you need to distract someone on board. She will give you a tip if you complete a favor for her.
Go to the lighthouse per Alex’s instructions and turn on the light. Once you are done, call or radio Alex again and she will let you know a way to distract Elisabet long enough for you to snoop through her stuff.