Slightly off topic, but i've seen several seals while doing field work a few years back. They work their way to the bays here around fall and stay seasonally or just pass through. There is a small colony that spends part of the season on one of the small islands in the bay here.
I see them every fall while sea kayaking in Tuckerton NJ. There's an Island near Little Egg Inlet where 100's of seals congregate for the winter. Not sure why they like this location so much but they are there every year.
Sometimes they are curious and will surface uncomfortably close to my kayak and even follow me.
I have also seen sharks and dolphins in New Jersey while kayaking. Not too fond of seeing those sharks though. Saw a group of Hammerheads while paddling 5 miles off the coast of Cape May.
More on Topic: my favorite animal to spot while mountain biking our owls. When I lived near Allaire, I'd see this great horned owl pretty frequently. Sometimes it looked like it was part of the tree and that tree had two gigantic yellow eyes. I've also had a barn owl swoop down in front of my face while night riding. Bats do that a lot too.