I've been trying to research the interrail website for how I could travel with my small dog from Stockholm to Edinburgh and back using the Interrail. (not for the purpose of sightseeing, but to go and visit family in Scotland.)  My own research suggests traveling Sweden-Denmark-Germany-Holland, and then take the ferry from Hook of Holland to Harwich, and then train up from London to Edinburgh. I would have no intentions on staying at any of the stopover places, and I would be happy to travel overnight and sleep on the train for example, since this is just to get to Scotland, not a sightseeing trip. My research calculates the travel time at roughly 1-2 days per way, would I be fine with the Global pass? I’ve also read that some ferries are included in the interrail pass, would the ferry from Hook of Holland to Harwich be included?

Thankful for all the help, as I’m getting quite desperate. (can’t fly the dog over, but can’t leave him at home with somebody either.)