OISA is a good source of information for this. Some places won't let you in if you are not over 21 years of age. You also have to be able to prove your age. It is very easy to get school for the children, even if they do not speak English at all, because there are several very high quality public schools that will teach English as a Second Language at no cost to you. Bus transportation is also available for free.
Wives get bored because students are busy all the time.
Make sure they can study English if they don't know it. Sometimes it is possible for them to study or work. Make sure they also take advantage of this wonderful community. If you have a family with children, a car is a must. There are cars for all budgets, but be careful with the mechanical condition if it is an old one.