I regret that I have never been but by all accounts from friends it is a delightful place for relaxing and taking it easy in the very best of convivial settings.
So… you must enjoy yourselves, you must go easy and take it slowly and come back recharged and essentially happy.
I have not been there but have seen films of them it should be a lovely holiday I believe there are some tropicals gardens I think they are on an island called Tresco
hope its sunny all the time you are there