I noticed so many friendly answers in this forum - probably you can help me with this. I have seen some spectacular photos from the subway section of Zion that I want to go there myself. I am new to photography and only have Ricoh gx100. I am wondering what pictures I will be able to take there. In some places a neutral density filter was recommended. I am willing to buy one if it is worth it. Has anybody experience with this location ? I am looking forward to your reply.