They can pop out everywhere, SAN-Park workers definitely love and appreciate their own working environment very much.
Keeping the paths and little stream crossings hikeable is only one of their tasks. By doing so they also deliver a big contribution to conservation, since warn out trails tend to become bald, a perfect attack point for natural erosion.
You can contribute to their work by adhering to the rules of the park, sticking to the marked sections (yellow Otter Claw) of the trail.