Hello! I am completing a grant to start our first school garden and outdoor learning area. I am struggling as to what type of picnic tables to get for our outdoor learning area. I worry that the traditional wood tables will rot and fall apart to easily. I need to create a supply list with links from Homedepot or Lowes but I'm not sure what type of table to look for. What material do you think would work best for an outdoor learning area? Other ideas are welcome too!