The northern entrance to the Britain Park is 1 km west of Zecharia, on route 383.
Besides multiple picnic sites, there is a well-marked trail network. We chose the "Cistern and water-well trail". This is a circular 2.5-3 hour trail, which meanders among pine and oak groves, olive and almond trees. We climbed up ancient agricultural terraces and down through cactus hedges.
The trail is dotted with archeological remains: Hurvat Shicklon on top of a hill, which affords views of the Ellah Valley to the west, and the Judean Hills up to Hebron in the south-east.
There are a few ancient man-made caves along the way, with limestone pillars, colombaria (for pigeons) in one of them and an impressive wine press in another.
Water has always been in short supply in Israel, and this trail demonstrates 2 kinds of water sources used over centuries: water wells to capture ground water and cisterns to capture rainwater.
There are some picnic spots scattered along the way.
It's a nice half-day trip from the Jerusalem, Tel-Aviv or Beer-Sheba areas.
When hiking in Brittain Park near Zekharia we were coming down a hill on a narrow path. There was a hedge of prickly pear cacti at the bottom of the hill, with only one narrow opening in the hedge.
A herd of sheep appeared all of a sudden, out of nowhere, huddled together. They covered the whole trail, obscuring every landmark: no more trail, just an ocean of wool surrounding us. Not only were we stuck in the middle of this wooly crowd, unable to reach the opening in the hedge, but soon a shepherd dog appeared and started barking at us menacingly. We couldn't explain to this four-legged shepherd that it was the sheep who pursued and surrounded us, rather than we pursuing them, as the dog surmised.
After all that, we still had to explain to our friends, waiting for us at the bottom of the hill, what had taken us so long!
In short: the sheep in this area should not be taken lightly.