I have seen black sand beach a few times already in Hawaii. This is the first time I have seen red sand. It is quite impressive. However, it is not easy to find the place. I learned it on Google map, but the first time I went to Hana, I missed it. There is no sign whatsoever. I had to go back and asked a couple of people. I am glad I found it eventually.
Hana is worth to go back to, especially this time I made a full circle—part of the drive pass Hana is unpaved—that is why I turned back the first time. I was assured by a couple ladies I met during a hike that the stretch is drivable, even though it is rough and not really allowed by Car Rental Company.