I've been to the green sand beach and it was insanely cool but it was IMPOSSIBLE to get there. Plus I didn't go too deep since it's known that people drown because the current is so strong. The way to get there was miles and miles and miles of hilly grassy area except with tunnels running through them everywhere that were big enough to fit cars. So we drove there, but there was no direction on where to go and it was very easy to get lost because the hills went on as far as you could see everywhere. We ended up following another car and both of us got stuck in huge ditches (or the paths narrowed) multiple times that were hard to get out of. We almost walked after we saw other people doing it but it definitely would have taken us all day to walk there! Still so cool and worth it though!!