To catch crabs by the sea, you need to look for them near the rocks by the sea. The crabs will hide under the stones to rest and occasionally come out to bask in the sun. When they are found, they will avoid getting caught in their hands. The specific operation steps are as follows:

1, looking for it by the reef in the shallow water by the sea.

2. Feel through the cracks in the stone with your hands.

3. After finding it, drive it to the corner by hand.

4. Hold it up slowly by hand, and don't irritate the crab to avoid being caught.

5. Just put it in a container filled with crabs.