The State Department of Fish and Wildlife says morning clam digging on Washington's beaches begins Wednesday. The first morning clam digging of the season coincides with the first low tides. Diggers will have to buy a 2014 license to participate in digs after March 31. Wlidlife officials say digging is best an hour or two before low tide. Digging begins Wednesday in Twin Harbors. Long Beach and Mocrocks are added to the list on Friday.