Continuity mistake: When Rosemary visits Hamilton Teed, he shows her a picture of Martin and Jim, aged 10, then puts the photo down on the desk, but a second later, the photo is gone.
Continuity mistake: When the girls are just finishing their look of the walled garden, Laura's scarf that has been visible on both sides up until now vanishes on the left side, then it comes and goes repeatedly.
Continuity mistake: When Laura finds the hammer with blood and hair on it, Rosemary finds the constable and tells him where the hammer is. When we first see the constable's car, it's in a ditch. But when he gets into it and drives away, it's no longer in the ditch, but beside the road.
Continuity mistake: About halfway through, when the girls are sitting at the dining-room table and Martin walks in with a decanter of red wine, he proceeds to fill the girl's glasses, but not his own, and yet, in the next shot, his glass is filled.
Continuity mistake: In the beginning, the Land Rover has something on the roof, like a ladder, but not long afterwards there's nothing on the roof.
Orpheus in the Undergrowth - S2-E2
Continuity mistake: When Laura decides to talk to Helena for the second time, she's wearing gardening gloves, but as she walks away, the gloves are gone.
Orpheus in the Undergrowth - S2-E2
Continuity mistake: On the second night at Julia's, Laura has insomnia again and this time she gets up and goes down to the gardens, which are bathed in light - much more than from a full moon. When Mr Elliott turns up while the girls are working, Laura says to him "Were you out star gazing last night, Mr Elliott?" And he says "Indeed I was, a partial lunar eclipse in wonderful darkness."
Orpheus in the Undergrowth - S2-E2
Continuity mistake: When Laura goes to see Helena, after they've made up, Helena has a chisel in her right hand, but not for long - suddenly, it's gone.
Orpheus in the Undergrowth - S2-E2
Continuity mistake: When Rosemary finds her second bunch of smooth ink cap mushrooms and picks one, then declares, "Fungus Ferguson. My old college professor," who will be able to tell Rosemary what is special about smooth ink caps - this has been bugging Rosemary for days - and then grabs her cardigan without dealing with the mushroom in her hands, which is no longer to be seen.
Orpheus in the Undergrowth - S2-E2
Continuity mistake: In the beginning, the girls have one wheelbarrow out of the Land Rover, with a few tools in it, but after they say hello to Julia, they suddenly have two wheelbarrows out of the Rover and a lot of tools in both of them.
Swords into Ploughshares - S2-E7
Continuity mistake: When Laura leaves Matt's girlfriend's parent's place, her bag is in her right hand, but suddenly it's in her left hand.
Swords into Ploughshares - S2-E7
Continuity mistake: Near the end, the girls find a big box, filled with antiquities, buried in Lord Engleton's lawn. Laura's jacket changes from before digging, to having found the box, and then back to the first one as they carry the box away.
Swords into Ploughshares - S2-E7
Continuity mistake: At the end, Rosemary has her bag over her right shoulder when she gets into the Rover, but once in, the bag is gone.
Swords into Ploughshares - S2-E7
Continuity mistake: Laura is handed a cup of tea that is only half-full. But when she puts the cup down, it's full.
Answer: Regents park.