Okay, I was in your situation. I wanted to be married in the Church. I waited until I was an adult to make the choice to do my confirmation, so I knew I wanted to do it "the right way". I also have a very devout family- my mother has 8 siblings and one of them I consider to be the "church lady" (she runs the baptismal, wedding, RCIA programs at her church).
So when it came time to decide what to do about our ceremony, I knew what I wanted… but FH wanted a beach wedding. That’s where he proposed, that’s where we spend our free time, heck, that’s where we walk our dogs (our babies!!!!!). So I contacted three different churches in our town (St Augustine, FL) and was told that under no uncertain terms would we be allowed to have a wedding on the beach led by a Catholic priest. The bishop can make acceptions, but it is HIGHLY unlikely they would do that for an outside wedding, as according to canon law- it has to be in a "house of God". The bishop here is VERY STRICT… Now, we were given the option to do it in the church, but they would have to choose our date (or give us a list of options) b/c they had weddings booked over 9-12 months in advance, meaning a change of date, loss of deposits, etc (plus adding at least another $1000 into our budget for the church, Pre-Cana, musicians, offering, etc). Also, they required letters from my previous Parish stating I’m a "Catholic in good standing" (whatever that means). That kind of irked me.
You have the option of actually having a Justice of the Peace service- or find a pastor of a less strict religion, at least the ceremony will be led by a Christian and will have God integrated into your ceremony. We ended up deciding to use his parent’s minister of their church (Baptist), and we will have our marriage blessed later by a Priest, therefore me recieving the Sacrament of Marriage and making it "official" in the eyes of the church.
As far as my devout family is concerned, when I asked my Aunt what she thought I should do and if she could help me, she stated that "I should actually decide whether or not I wanted to be Catholic any longer, rather than have a romantic wedding on the beach". Boo @ that. So we made our decision based upon what we wanted and just told everyone else that asked that this is what we wanted and what we were doing. This way I still have my sacrament, but FH has the one thing he asked for, a beach/outside wedding.
Here’s a previous thread about Catholic weddings with more info: