This week we're in Herefordshire where Sean is at Bodenham Lake, site of a huge habitat creation project. When work is complete there will be new spaces for otters, water rail, bitterns and the lake's best-known inhabitant - the grass snake. Sean joins Sophie Cowling, the warden here, and her volunteers as they seek out these slippery creatures as part of an ongoing survey. Meanwhile, Margherita is in a traditional orchard looking to turn its fortunes around with the help of a brew popular in medieval times - verjuice. Made from the juice of unripe apples, verjuice is proving a hit with foodies and top chefs alike. Adam is also in Herefordshire, helping to get another of the country's famous crops in - hops. Matt's getting ready for this year's Countryfile Ramble for Children in Need by meeting Josh, an inspirational 14-year-old whose ambition is to climb a mountain.