Some people enjoy fishing.
It is relaxing and can have tremendous rewards. I get the same pleasure out of crabbing and, for the most part, it is probably a less expensive endeavor. I also find the activity to be entertaining for almost everyone who participates. Even people who have lived on the water all of their lives, but who have never paid much attention to crabs, enjoy the new experience in their own back yard. You can catch crabs with a minimum of equipment but there are some simple, inexpensive things that would make for a more enjoyable and productive experience.