Before we think deeper, we both agree dinner outside under the sunset sounds awesome. here is a picture .

OK Pros are clear and are probably unbeatable. In general when we go to the restaurant, seating outside under the sunset, by the lake sounds like an obvious choice. But now for wedding, I want to think more of the cons.
- First of course if the weather is bad, outside won't be possible. And what if weather is good and the rain suddenly comes (well, this we can probably forsee from the hourly forcast and already seat everyone in).
- Second, the beamer would not be possible I guess? The sunset is just too bright and beamer doesn't stand a chance.
- Also, maybe for the people to give a toast, their voice wouldn't be loud enough in this vast space? I'm really not sure. Do we definitely need a mic and speaker when the dinner is outside?
- Bugs flying around in summer? Is that a problem?
Any major problems I haven't think of yet? The more I look around, the less fraction of outside dinner I found. It seems like most of the wedding dinners are inside?