And, yes, I did pet the horseshoe crabs.
Oh, good! I totally freaked out my friend's little brother when I took him to the Aquarium by holding the horseshoe crab. (He was 22. The little brother. I don't know about the crab.) I though he was going to scream and hide. I did manage to get him to touch the urchins, though. Glad you had a good time. Your mention of it reminded me I really need to go since there are a ton of new exhibits since I was last there.
My parents' zip code changed by one digit about 10 years ago. I still use the wrong one. I only discovered this last week. But there are maybe 5 zips for the whole area, so... My big problem is remembering what my own zip code is. It is one different from work and....I never recall which is which without looking it up.