It was a worthwhile trip! There was no wind that day, so I didn't need a raincoat at the crevice; an umbrella was enough. I recommend going on a sunny day for a more beautiful view.
Regarding transportation, after arriving at Wulong South Station, head straight to the exit for the shuttle bus. It costs 16 yuan per person and takes about 45 minutes to reach the visitor center. Then take a shuttle bus to the Sansheng Bridge. After visiting the Sansheng Bridge, you can take another shuttle bus from the exit to the crevice. After visiting the crevice, take the bus back to Wulong South. We arrived at Wulong South around 8:50 AM, reached the Sansheng Bridge at 10:00 AM, took a bus from the crevice exit around 2:40 PM, and arrived at Wulong South around 4:00 PM. Finally, we took the G2436 train departing at 4:47 PM back to Chongqing. It was a leisurely trip overall.