"Sounds like it's a good time to be a pirate."

Rey isn't, but she has enough experience with the sea and open waters to know how to navigate. One of her old selves even died in the ocean once, but that was so long ago that it's just a memory now, and not something so traumatic that she fears getting her feet wet again. She's let bad experiences ruin enough parts of her life and she won't let it make herself less useful.