Hello jason,
The simple answer is "yes" but the size of caravan depends on exactly which model (year, body design, engine power & size) you have.
A quick check of the database I tend to use suggests that 1.6i Exclusive 5d, is limited to a trailer of about 900Kg Gross weight which is not very much for a caravan.
So whilst technically you can tow a caravan, it may not be of a practical size for you and your family.