I need help deciding what kind of flooring to use in making my "courtyard" area more useable. I've dug it out so there's about a 2 foot drop from the concrete edging (you can see the top of the concrete edge in the attached pics). The first pic is from the ground looking back at the steps up to the house. The second pic is from looking down on it from the top of the stairs next to the front door. In the second pic, you'll see there is the back of the carport to the right, the front of the house to the left, the stairs up to the house at the bottom and a rock wall in front. Looking for recommendation on what kind of material to use for the floor of this area. We have an irrigation system running into this part of the yard and are in the middle of planting palms & red ginger plants along the top of the rock wall. We live in Hawaii, so the sky's the limit on what we can use this area for. I'm thinking of using this space as a potting/cutting area and also to house some surfboards. Any help would be appreciated!