I'd second that - have stayed there many times. However.........
Approach from the north side through Malleville-sur-le-Bec on the D581 from the D438. Go through the village, into the wood, and where the road does a 90 left, turn right. Site is first entry on right. The road down into Le Bec is a bit steep, has a very tight bend, and an angled junction at the bottom.
The site is actually municipal and a new manager was appointed two years to oversee the elderly couple that have been running it for years. Suddenly they have a new office near the gate, a small bar/shop, and wi-fi everywhere. They also took down a huge long Beech hedge which provided very good wind protection, and it is probably the reason why they built the pool. I fear it will spoil what was a quiet, well kept and very friendly site.
Two other points: try their local cider from the office - not strong but what a flavour! And avoid the (open) wi-fi: I used it two years ago and many people in my address book got spammed as a result. By looking back at the date and time of its origin it had to be from that site - the one and only time I used my laptop on a non-encrypted link during five weeks of holiday.
Its Le Bec-Hellouin (spelling) by the way.