Where to catch Crabrawler

In Paldea (Scarlet & Violet)

• East Province (Area Two) — Walk
• Glaseado Mountain — Walk
• South Province (Area Five) — Walk
• West Province (Area One) — Walk
• West Province (Area Two) — Walk

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

• Chargestone Cavern — Walk
• Coastal Biome — Walk
• Polar Biome — Walk

Crabrawler — full Pokédex entry