How was life at Dyea Beach different than life in the south with the judge?

Life in California was domestic bliss for Buck. He spent leisurely days in the garden and ate wonderful meals. He was basically a pampered pet. On the other hand, Dyea Beach is harsh and uncompromising, "No peace here, nor rest or safety for a moment. Every moment was confusion and action. The men were not the ordinary Townsmen or dogs of town, but rather they were all savages, and it was only the law of Club and Fang".