This place is super cool! I recommend it if you're planning on stopping in South Point. We took our host's recommendation to drive down to the beach parking lot at sunset for pictures and the view. We then went back the next morning to do the hike to the green sand beach (more of a very windy walk than a hike - don't do it in flip flops and you'll be fine - took us not-super-fit-people about 50 minutes each way).
It's about a 10-15 minute drive to restaurants, so this is one of the places where I recommend bringing some food in for dinner. Go to the coffeeshop on the way back to the highway the next morning!