Doing some diving in Kauai and needs input! We dove a lot on South side near Poipu and north, Tunnels. I want to change it up. Is Niiahua worth $345 w 2.5 hrs boat ride or is Nana Crack worth the diving $245 w 3 tanks. If we do 2 tanks, we would dive Nana Crack than our SI would be a scenic ride to NaPali.