Baddeck: if you are going to follow HowieE suggestions and spend some time in Baddeck, and you are a fan of bagpipes, then you will not forgive yourself if you miss one of the wednesday night Ceilidhs at the Gaelic College of Celtic Arts and Crafts (even if you are not a fan of bagpipes) - and you will need a day for the Cabot Trail - and you will have to take in one of the Lobster Suppers (they have all you can eat mussels and chowder - but eating all you can eat will have consequences about 2AM - and it ain't pretty ...)
Don't rule out the ferry from Argentia for the trip home - it really does give you a lot more flexibility in your explorations - but it is an 18 hour trip and a cabin makes life a lot more comfortable.
St. John's: Pippy Park is right in the city - sites are a bit small but are reasonably buffered from each other - get reservations
L'Anse Aux Meadows: Triple Falls RV Park is just outside of St. Anthony - basic but clean and friendly folks.
Do take the time to enjoy dinner theatres - there is quite a network in Newfoundland - the one at Cow Head is terrific.
In Gros Morne, even if your friends don't enjoy hiking, do convince them to take the "walk" to the boat tour on Western Brook Pond.
Parks Canada - Boat Tours
Newfoundland excels in an "agendless" holidy - our greatest memories really weren't the big attractions (although we did enjoy them) - it was the poking around in small coastline villages - moving on when we felt like it.
- to meet the friendliest folks you will ever find anywhere on the planet.
- to adopt Cod as your new favourite fish.
- to visit a chunk of the world that may be poor in material wealth but rich in culture
- to forget what a fresh salad looks like
- to be cold, hot, wet, dry - in the span of 15 minutes
- we didn't spend at least one night doing a local Bed and Breakfast
- we didn't spend enough time on the North Shore
- we didn't go to Twillingate
- we didn't go to St. Mary's Bird Observatory
- we went too late in the season to enjoy the icebergs
- we didn't go "jigging" for Cod
Enjoy your trip - it will be different than you've ever had before - but one you will remember for a lifetime.
A couple pictures: Moose are everywhere, farming methods are somewhat traditional, and bringing the cows home means a trip down the Trans Canada highway.