We are going too. First time for us up there. Looking forward to it.
Over the last several years, the fields have been a bit wet, and after reviewing a couple of forecasts it looks like they may be again this year.
Although the weekend itself looks dry and sunny, the forecast is for a fair amount of rain in the days previous. Those fields don't dry out that quickly, so you may want to bring boots, or at least a change of shoes.
Just an FYI