It really is a beauty spot and the scenery in the background is gorgeous, as Karen said.
Natalie - It's a choice you have to make. The raspberries will continue to expand. There is NO doubt about it.
We've all had problems where we don't want to spend the time and energy on some project because there's another project we really want to do. If you lost the day in the garden due to rain, you wouldn't be outside. So the only choice I see is pretend it's raining and dig out the raspberries and pot them up.
Chelle said it's a tough problem and it is. Get the shovel, pile up the raspberries and search for more runners while you dig because they will show up regardless of how much you don't want them to expand.
You know we're all wishing you the best luck.