European comparison of prices in campsites - accommodation, catering and caravans

In many places across social networks throughout Europe, the idea that domestic campsites are more expensive than foreign ones is spreading. As it happens, the grass behind the fence always seems greener than ours. Let's compare the prices of European campsites. We will compare fixed accommodation units with all equipment as well as camping sites for tents and caravans. The comparison of food prices did not escape our attention either.