AGREE ARRANGEMENTS IF YOU CAN!
This cannot be stressed enough. Contested applications to the court relating to arrangements for children are the most stressful thing that can happen in a divorce for all concerned, including the children. Unless such an application is made (or unless the court is not satisfied with arrangements), the law takes a ‘hands off’ approach and leaves the arrangements to the parents to sort out. Accordingly, if arrangements can be agreed between the parents then the court will usually make no order relating to the children.
If you cannot agree arrangements for the children directly with your spouse then consider going to mediation