Shore of Lake Pukaki as Shores of the Long Lake
Refugees set up a temporary camp on the shores of the Long Lake after Laketown is destroyed by Smaug.
Source: Production Video #5
The Hobbit: The Battle of the Five Armies Filming Locations
Everyone fights a huge battle at the foot of the Lonely Mountain and Bilbo returns home.
See also: An Unexpected Journey & The Desolation of Smaug.
The Hobbit: The Battle of the Five Armies was filmed in New Zealand
Rock & Pillar Range as The Desolation of Smaug
The dwarves who stayed in Laketown travel to Erebor to rejoin the rest of the company.
Hobbiton as Hobbiton
Bilbo returns to Hobbiton after his adventure only to find that he was presumed dead and all of his possessions are being sold off.