There are beginner levels (yellow,) experienced (green) and advanced (black.) I believe there are 2 to 3 courses in each color. Also with the advanced level I was told you need to be at least 16 years old as this level is the highest and it has a controlled descent (bungie-like) instead of zip lines like the yellow and green courses at the end.
They tell you which levels are easiest to most challenging. I recommend starting on the easy ones even if you have experience at other courses. You'll also take a brief 15 minute training. The staff is super helpful. Also, the courses do not intersect.
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