Initially I intended to build the interior of the cave but I decided to focus on the main concept which was the narrow canyon area with the stream. Its been a while since I used Unreal Engine. I originally started using Unreal Engine 3 professionally back in 2006 as a licensed developer. So to ease myself back in I decided not to bite off more than I could chew. Plus the scene is very asset heavy even with instancing. It runs smooth but not if I add any more stuff. Perhaps if I bake the lighting down but I love dynamic GI, how can I go backwards! Thanks for your comments Cleveyus. I was feeling a bit ‘glanced over’ before you posted. 