Corran, You had great light compared to when I have visited. Morning light is usually too harsh and the stones very reflective or affected by the tree shadows. Late day the light comes from the right and usually causes some flare. A nice spring overcast day is my next planned trip there since the trees will have leaves then. The creek itself is interesting if you travel toward the Chattahoochee, but there is not really a good trail beyond the ruins. The other side of the bridge is a little known fly fishing spot.