LEGO Creator 3in1 Sunken Treasure Mission 31130 Building Toy Set for Boys, Girls, and Kids Ages 8+; Features Octopus or Submarine (522 Pieces) : Amazon.com.au: Toys & Games
LEGO Creator | Octopus from Sunken Treasure Mission (31130)[522 pcs] Building Instructions | TBB - YouTube
LEGO Animal Dark Red Octopus #71954 - BrickResales Pty Ltd