To solve this puzzle, you will need to find the colorful hexagons painted on the pavement between Cold Stone Creamery and The Exchange Market on the Riverwalk Level.
Step 1: Stand inside the center red hexagon, facing Cold Stone Creamery, with your back to The Exchange Market, as shown below.
Step 2: Follow the arrows in the grid below, from left to right, top to bottom, stepping into one adjacent hexagon each time.
Step 3: When you are standing in the final hexagon, answer the question below. (Need a hint?)
Once you solve this puzzle, you will receive a link to the photo op, along with a link to crack the code and solve the final puzzle!