Complex sentence: The sisters obliged and joined up with Clarence and his eight-person party several days later; after outfitting the ladies with appropriate travelling attire, the entire group set off for the Klondike via the Inside Passage waterway and the Chilkoot Pass.
Split into simpler sentences: The sisters obliged and joined up with Clarence and his eight-person party several days later. After outfitting the ladies with appropriate travelling attire, the entire group set off for the Klondike via the Inside Passage waterway and the Chilkoot Pass.