Lumineon locations — where to catch

In Paldea (Scarlet & Violet)

• Casseroya Lake — Walk
• North Paldean Sea — Walk
• North Province (Area One) — Walk
• North Province (Area Three) — Walk
• Socarrat Trail — Walk
• West Paldean Sea — Walk

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

• Coastal Biome — Walk
• Polar Biome — Walk

In Hisui (Legends: Arceus)

• Seagrass Haven — Walk

In Sinnoh (Diamond, Pearl & Platinum)

• Canalave City — Super Rod
• Fuego Ironworks — Super Rod
• Iron Island — Super Rod
• Route 205 — Super Rod
• Route 218 — Super Rod
• Route 219 — Super Rod, Good Rod
• Route 221 — Super Rod, Good Rod
• Sea Route 220 — Super Rod, Good Rod
• Valley Windworks — Super Rod

In Johto & Kanto (HeartGold & SoulSilver)

• Pokéwalker — Evolve

Other games (5)

• Brilliant Diamond / Shining Pearl (Gen 8): Canalave City, Fuego Ironworks, Iron Island, Route 205, Route 218, Route 219, Route 221, Sea Route 220, Valley Windworks
• Ultra Sun / Ultra Moon (Gen 7): Alola Route 15, Ancient Poni Path, Poni Breaker Coast
• Sun / Moon (Gen 7): Poni Wilds
• Black 2 / White 2 (Gen 5): P2 Laboratory, Unova Route 17, Route 17, Unova Route 18, Route 18, Unova Route 4, Route 4, Virbank City, Virbank Complex
• Black / White (Gen 5): P2 Laboratory, Unova Route 17, Route 17, Unova Route 18, Route 18

Lumineon — full Pokédex entry