they are all over between the rocks, look like barnacles during the day, covered with crushed shells. I found a small removeable rock with about 7 of them and took the rock, one came off and stuck to the bucket. very hard to get off the bucket, didn't even bother trying to get one off the rocks, they didn't budge and shrink up really flat.
You'll get splashed a little, but if you are just looking for a loose rock with anemone's then you should stay dry, this was our first time out, so we were looking for everything for a couple hours.