Edie wants to go to climb Suilven.
The nearest village to Suilven is Lochinver.
She wants to catch a bus there from Inverness.
That is a two hour drive at least.
A toad is not a young frog.
A tadpole is but a toad is a different species.
At 46:49, at the start of the scene where Edie and Jonny erect their tents, Kevin Guthrie (Jonny) calls the actress by her real name "Sheila" instead of her character's name, Edie.
Edie shows the outdoors expert what he thinks is a spider. It is obviously a crab.
He has not lived in Lochinver for long.
Hancock asks for "Gas" for her ancient camping stove, and is sold a "threaded" canister - the stove she presents is a pressure operated paraffin model, and even if she was losing her faculties, it is unlikely she would have made such an error.
Early in the film Edie calla her daughter on the land line which has the town Ballater written on the dial. She is next seen at Euston Station. So the call was made from London not Ballater in the Scottish Highlands.