I would rather be schlepping my luggage around than have it shlopping in the sea! Ours were so water logged when they recovered them from the water we had to abandon them, fly home empty handed and over two weeks on are still waiting for it to be returned.
To the original poster, I am sure you can have breakfast, then take your cases off at time to suit you, and get a good transfer company- Romecabs or Bobs Limos both excellent and will be waiting just out of the port exit next to the gangway, no distance at all. Have a great cruise!