This is the question that I get asked pretty often and this is also the question that I ask friends. You will be hard pressed to find a beach that has a bounty of perfect shells waiting to be picked up. It's more of a hunt (which I think is more fun!) Basically, I have found shells all over Oahu. The best spots are tide pools in the North Shore and even Waikiki, believe it or not.
I have also found some pretty pearly shells on vacation to Kauai and Maui. My favorite beach treasures to find is beach glass. The reason is because not only is this weathered glass lovely but I feel like I'm doing something good by cleaning up the beach instead of just taking from.
We love to make beach glass jewelry and collages with our finds. The picture above shows some shells spotted on a little beach on the West side of Oahu.