- The pilot episode was filmed in October 2016, in BC, Canada.
- One of the primary settings during production for the pilot episode was Steveston, but filming also took place in Deep Cove and Port Moody, all in Canada.
- This episode will consist of one particular VFX sequence that takes place under water with the mermaids as they hunt. The mermaid tail effects for this scene was done by Pixomondo, the same visual effects company known for designing the dragons on Game of Thrones.
- ↑ Vulture — Freeform Orders a ‘Thrilling,’ ‘Complex,’ and ‘Scary’ Pilot About Mermaids (July 25, 2016)
- ↑ SpoilerTV — Freeform's March 2018 Programming Press Release (February 23, 2018)
- ↑ 3.0 3.1 What's Filming—"Siren Season 1 Starts Filming in Vancouver" (August 2, 2017)
- ↑ YouTube Comic Con — "Siren New York Comic Con Panel | Freeform" (October 29, 2017)