If you want the Clams, then you can go to the 'Corniche' and dig down there when it is low tide, you will find plenty of them their.

If you want Crabs .. go to 'Smysema', before 'Al Khour' ..there are some secret places .. my friend took me before and I was ready with my spear, but he told me no ... take those and gave me two gloves and ... Let's get the party started .. we were catching them by hands ...