Many of us will know The Grove in Watford as a luxury five-star retreat set in stunning countryside and being one of Hertfordshire’s most prestigious venues. But what you may not have known is that The Grove is also home to some underground war bunkers that date back to World War Two. Air raid shelters from this period can still be seen in the grounds today and new video footage published on YouTube by 'Watford Fromabove' has given people a short tour of what it is like inside the bunkers. Inside the underground war bunkers in the grounds of The Grove (photo Watford Fromabove)