welcome to BDW! The girls have given great advice.
Yes, some resorts offer free weddings and they are very clear what is included. usually it is very basic like flowers, for a set amount of people, etc. and any extras will cost you. They will usually want you to have a group contract in place and a minimum amount of rooms or room nights booked.
if you would like to contact us, we can break down the most popular "free" wedding package offered by different resort brands.