Razor clam shows can vary a lot depending on the weather and surf conditions. They can appear as just a hole, a mound, a dimple in the sand, or a doughnut shape. Some days if it raining hard or the surf is big you won't be able to see anything and you will have to "pound" the sand to make them retract their siphon which will temporarily cause a crater as they pull down giving up their location. If you plan on trying, this years clam population on clatsop county beaches is huge and I would get after them!