Amazing futuristic oceanside campus walkways

Date: 7/1/2018

I was at a college campus and we were doing some sort of campus tour (I'm pretty sure it was because we were admitted) and along with a few of my friends (like T.) we went from some walkway "hub" and followed a specific path, about the size of a lane and a half on a road. This path had absolutely pristine maintenance, because I couldn't see a single bit of trash or markings, it was perfect. All of it had a light gray color, like some sort of coated concrete but with a consistency like a road where there was one consistent pour along the entire path. I remember the walls being accented with a very nice light blue color, but they were maybe waist high to prevent people from falling. We walked down this path while the guide described the campus. We came upon a place were we were inside a cutout in a cliff. There was an overhang above us, but I remember being at least somewhat close to the wall of the cliff (possibly directly under us, I'm not sure but I know the cliff was at least 8 to 10 feet off the left side of the platform we were walking on). Looking of the right side of the platform, we saw a large, beautiful area of shallow water maybe a few dozen if not a hundred feet down. The guide claimed that this area was the largest and flattest (underwater) plateau in the country (but it was almost at the surface, because it was visible from the top of this walkway pretty clearly, so the water could only have been a few feet deep). She also tried to say that it basically was the largest in the world, but it doesn't officially have the title. The rock was definitely flat, but it also was pretty porous as well. It looked like a flat, scaled up version of a lava flow. As we exited the area, I noticed it was almost enclosed by two large rocks/formations off of the right side of the platform, like you'd see off a cliff into the ocean. After exiting this plains area, I remember vaguely seeing some businesses and restaurants (like Chick-fil-A) and further along some kayaks and some sort of kayak loading station that split off of the road, but we ended up going basically the entire way around. It was pretty amazing to see, and the path seemed to be a good half mile to a mile. At the end of the path, the guide said that many of the students jogged the paths. They were very high up and I'd assume you have to descend somehow to get down at the hub.