It was really a highlight of our trip. My son is likely to surf again at some time (he's a "board sport" kid - skate, snow). For the rest of us, we were tourists, but we all got up, it was fun, and we can now say we've tried it.
I wouldn't rent surf boards without lessons. It isn't easy to catch a wave without a little help starting out. Plus its dangerous without someone telling you what to do - for yourself and others.