So here is my full review of the P&O Pacific Eden 10 night cruise 'Discover Vanuatu'. It's quite long and detailed, but for a first time cruiser (like I was) hopefully this provides enough information to know what's what.
Starting embarkatiom: this was easy and simple. Check your bags in when you get to the port and then wait around for embarkation start. Pretty straightforward going through the basics. Children get a wrist band to wear the entire cruise with your lifeboat station number. I think this is a great idea.(As I went with myself and my 3yr old son)
Once you're on the boat someone will help direct you to your room if you need it. And either your bags will be waiting outside your door or delivered shortly after.