Lobsters like holes and dark places. During the day you will seldom find one out in the open. They are master excavators, and sometimes dig deep tunnels under structure. These holes are often easy to find, since there will be a mound or fan of excavated sediment around the opening that is a different color than the rest of the bottom. They will also hide inside any confined place - a crevice, a bucket, a hollow wall. At night, after several hours of darkness, they come out to feed. At this time they are so easy to catch that most states forbid divers from lobstering at night.