And....here I am....
We took 2 cats and our standard poodle, Charlie to Newfoundland in 2009. We elected to take the shorter ferry ride from Sydney, Nova Scotia to Port Aux Basques NFL. It was supposed to be a 6 hour ride and it was close to that going over to NFL. We elected to return via the same route instead of going back to Nova Scotia via St. Johns, as that trip was supposed to be 10-12 hours long. As it turned out, the return trip from Port Aux Basques was close to 8 hours and was harder on the animals. It was hot and the 18 wheelers had their generators on so lots of diesel smell was present. If we were doing it again, we would have left our generator on with the A/C s running just to keep the air circulating. But that might have worried me more.
In 2009 you could not go down and visit the animals while they are in the RVs. That may have changed. However you could put them in a cage/crate for the trip, but they would be in a separate area and you still could not visit them. We thought our animals would be better off in our coach where they were familiar.
If I did it again, I'd take the earliest ferry on the trip over and on the return so that it might be cooler.
We LOVED Newfoundland, the people are so great. Be sure and visit everything you can. There are several write-ups in either the library or in the "Journals/Trips" section of the forum. Several of us did a pretty detailed write of things to do and stuff to see while there; along with places to camp.
Have a great time, it's a fabulous location.
Also, take time to visit Peggy's Cove, Halifax and do the Cabot trail drive while in Nova Scotia. The Canadian Maritimes are beautiful.
Marsha~