Where to catch Sliggoo

In Paldea (Scarlet & Violet)

• Casseroya Lake — Walk
• South Province (Area Four) — Walk, Static Encounter
• West Province (Area Three) — Walk

In Kitakami (Scarlet & Violet – The Teal Mask)

• Timeless Woods — Evolve

Sliggoo — full Pokédex entry