Lanturn locations — where to catch

In Blueberry Academy (Scarlet & Violet – The Indigo Disk)

Brilliant Diamond / Shining Pearl (Gen 8): Sea Route 220
Sword / Shield — The Isle of Armor (Gen 8): Honeycalm Island, Honeycalm Sea, Insular Sea, Max Lair, Stepping-Stone Sea, Workout Sea
Sword / Shield (Gen 8): Bridge Field, Dusty Bowl, East Lake Axewell, Giant's Cap, Giant's Mirror, Lake of Outrage, Motostoke Riverbank, North Lake Miloch, South Lake Miloch, West Lake Axewell
Ultra Sun / Ultra Moon (Gen 7): Akala Outskirts, Alola Route 8
Omega Ruby / Alpha Sapphire (Gen 6): Route 107, Route 124, Route 126, Route 128, Route 129, Route 130, Underwater
X / Y (Gen 6): Azure Bay, Shalour City
Black 2 / White 2 (Gen 5): Undella Bay
Black / White (Gen 5): Driftveil City