Sea Urchin or Not? We saw this yesterday at the side part of the beach where there's a lot of rocks. This one looks like a sea urchin because of its spike, but this one was a bit smaller than the sea urchin I know. It was hiding between rocks together with some little crabs. Sea urchin can be eaten fresh though I haven't tried and taste it. Have you tried eating sea urchin? I think in some places its called "tayum", correct me if I'm wrong.