We stayed at Grove Lock for two nights at Easter. The site has plenty of room and the toilet and shower facilities are very clean, spacious and warm. Our young son enjoyed seeing all the various forms of transport that you can witness from this site - narrow boats, trains, cars and aeroplanes! I can honestly say that none of these caused a problem in terms of noise at night. This site is something a bit different and I would recommend it if you are visiting the area - we went to Bletchley Park. The only drawback for us was the freezing wind that whistled across the fields, making the minute walk to the shower and pub uncomfortable, particularly for the children. The Grove Lock pub serves excellent food but it is pricey.