I noticed this creature floating near the recreational pier at Rocky Point Park, in Port Moody, BC. It appeared to swim by curving/swinging its body side-to-side, as if it were a tail, and appeared to be similar in size to the fist of a child. There were a number of jellyfish in the waters at the same time, and at first, I assumed it was a type of jellyfish. Can anyone identify this creature?

I noticed this creature floating near the recreational pier at Rocky Point Park, in Port Moody, BC. It appeared to swim by curving/swinging its body side-to-side, as if it were a tail, and appeared to be similar in size to the fist of a child. There were a number of jellyfish in the waters at the same time, and at first, I assumed it was a type of jellyfish. Can anyone identify this creature?

I noticed this creature floating near the recreational pier at Rocky Point Park, in Port Moody, BC. It appeared to swim by curving/swinging its body side-to-side, as if it were a tail, and appeared to be similar in size to the fist of a child. There were a number of jellyfish in the waters at the same time, and at first, I assumed it was a type of jellyfish. Can anyone identify this creature?