Stayed one night before using the tunnel and the site is very convenient for an early morning train. The morning we left it was foggy and there was a lot of dew and I could see how with the longish grass it could be a problem getting off the field. BUT the worst part was getting out onto the main road. We got in fine but when we left the height of the verge at the entrance in relation to the road resulted in the step below the door grounding and the only way out was to reverse, in the dark and fog onto the typical Kent road - narrow, hedges, entrance on bend. Although convenient for tunnel I won't be there again.