score:3
I recommend to have a friend near the camera, maybe you will find an other photographer and organize the morning tour together.
It is not just thief, but tourist are looking for photos and will step over your tripod, etc. It helps also to create a short "block" between you and camera.
Else, you should find a quiet spot, where you have a long field of view, if people are approaching. Thief tend to be on busier parts (near car parking/bus stop/queue/usual photo stops).