We had a great week at Medlands Sanctuary - Dad, Mum, and three twenty-something children.
Place is very clean, with spacious cooking/dining/living area, and big bathroom. Like everything on Great Barrier it's off the grid, so you have to be aware of electricity and water usage. No phone reception but wifi is strong.
Deborah was a great host, picked us up at the airport and had lots of good local tips. You definitely need a vehicle to get around the island, so organise that early if you need to hire one - can be tricky at holiday time. Deborah was kind enough to hire us her vehicle, which was perfect, but that might not always be an option.
There are limited options for buying food/eating out, so a bit of forethought on this is necessary - if you bring your own food the kitchen is well equipped - gas hob and refrigerator.
Re the island in general, there's not too much in the way of organised activity, but we had a fine week hiking/swimming/reading/hanging out playing cards and games - good times!
Thanks Deborah!