Some specific locations used included:
* Vancouver Film Studios: Many interior scenes were filmed here.
* Stanley Park: Used for scenes in the woods and at Camp Half-Blood.
* Queen Elizabeth Park: The Bloedel Conservatory was used for the scene where Percy first meets Annabeth.
* Various locations around Vancouver: The city's streets and urban areas were used for various scenes throughout the movie.
The film also utilized some soundstages and backlots, but the majority of the filming took place in and around Vancouver.