After harvesting at 3 of the 4 clam beaches we have found Mocrocks Beach to be the best.  The clams just seem bigger at Mocrocks as compared to Copalis or Twin Harbors.  Never have been to Long Beach to harvest clams, its pretty far to drive just for 15 clams.  If it were an overnighter with a soul mate, 4 limits would make it a little more attractive.  Sun light or moon light the digging is still fun. 

 Click on the clam images to see a popout map of general areas of the beaches.

 Copalis

Longbeach

Mocrocks

Twin Harbors