When I read the previous posting, my first thought was "you have got to be joking!" because I live in Loughton, and no way is the elms near Loughton station. However I suppose it is all relative. Be aware though there is no public transport, BUT, and it is a big but, if you are coming from the north by car, it is EXCEEDINGLY easy to get to. M1, M25 eastbound, turn off at Waltham Abbey, follow the signs round the roundabout towards Loughton, go up Woodridden Hill a hundred yards or so and turn right past the Volunteer Pub into High Beach.
There is also another site nearby, this one nearer to Debden station (one stop on). Again, no public transport, but if you are walking, it's only about half an hour away from the station, and from either Loughton or Debden, central London is only 40 - 45 minutes away.
http://www.debdenhouse.com/leisure.html
Sorry this is late, just saw the post.