Well
The better Question is:
What would McGyver do ?
Hence my solution:
I build a time machine out of the wedding dress and the toothpaste.
Driven by the child's youthful energy, I let myself be transported back to the cruise. I then enjoy it a second time.
With the background knowledge, I take a bottle of rum and a pistol with only one shot for the second shipwreck.
Then I can escape from the island like Jack Sparrow, sorry CAPTAIN Jack Sparrow, and recapture my ship!