Continuity mistake: When Tom eats the girl cat's hot dog sausage, the girl cat is holding an empty bottle in her left hand. In the next shot, the bottle has disappeared.
Continuity mistake: When Jerry produces a bucket of sand, he is not wearing his red swimming trunks, but when he replaces the sugar bowl with the bucket, he is wearing them again.
Revealing mistake: When Jerry walks towards the crab with the soda bottle cap stuck on his head, one of the crab's legs disappears for a frame or two.
Continuity mistake: When Tom realises he is drinking sea water in the bucket Jerry gave him, he drops the bucket on the towel, but when he spits the water in the girl cat's face, the bucket is nowhere to be seen.