Like Adam, I like my Viper for the ocean. Tough part is getting out through the breakers. Once you're on a wave, keep the bow up, particularly if you're surfing the shore break. If you pearl, you'll probably ender, unless you tilt way over to shed the water quickly. I have planted the bow of a Cascade in the sand. The wave pushed the stern up & over so I landed on my head in the sand.
Ocean surfing is a lot of work, but it sure is fun. It's a totally different surf than you'll get on a river wave. Be mindful of kids on the beach when you're coming in. They're fascinated by us & don't understand that we have little control just before beaching the boat.
When you're not in the boat ALWAYS stay between the ocean & the boat. If a wave catches the boat it can hurt you bad.
Here's a picture that my wife took of me at Kill Devil Hills, NC.