Verified answer

It's like a ridiculous pseudo-wedding, with a 'bride' in a white gown, a stand-in 'groom' dozens of attendants (male and female) in formal attire, and lots of gift giving, and a big dinner afterward. Plan on spending lots of money.

I guess like you plan a wedding

1. Budget

2. guest list

3. look around for a venue that fit the budget and amount of people

If on a budget, look at community centers and private clubs like Elks, VFW, Women, Mason, Knight of Columbus, etc

Look for a place that have a kitchen and banquet hall, if you are on a tight budget

http://en.wikipedia.org/wiki/Quincea%C3%B1era

It looks like some sort of really fancy 15th birthday party to me!