Coming Soon: How to Eat a Crab!
Mmm, Crabs.
          How to catch your own.
Of the three methods I know of to catch crabs, I have tried one and have built a trap, but need a place to set it.
   Catching Crabs:

1.String and Net Method:
-Lower string with a piece of chicken tied to it and wait until you feel or see a crab messing with.
-Slowly lure the crab to the surface, but let it hold on to the chicken.
-When the crab is visible, swipe the crab into your net.
-This maybe the most frustrating method, but it can be successful.
2. Basket Method
-You can buy a specially made 'Crab Basket' these are like two fish landing nets attached together.
-Tie a piece of bait to the center of the basket.
-Lower and let it sit on the bottom.
-Periodically raise to trap to see if you have anything.
A similar 'Pyramid Trap' can be seen here: www.2020site.org
3. Crab Trap
-These can be built, so can the Basket method above.  But this will be the one I show  how to make.
-Basically a fool proof method.
-Put bait in holder and find a place to set it that is out of water traffic.
-Check to see regulations in your area, some places require a license and there is a bag limit.
How To Build A Crab Trap