Why this route
This one-day plan ties four stops into a single arc: landscape above ground and engineering hidden beneath it. The Wujiang River Gallery supplies two hours of river-gorge scenery; the 816 Underground Nuclear Project follows with two hours at an underground nuclear engineering site; the Three Natural Bridges at Wulong then deliver two hours among three natural bridges; and the Tianfu Official Post Station closes the day with two hours at a historic official post station. Nature, buried infrastructure, and courier-station history in one route — that is the thread.
The day split keeps the pace even: four stops at two hours each, eight hours of sightseeing with no overnight decision to make. Each stop is a self-contained block, so the route moves in clean two-hour segments — river first, then the underground project, then the bridges, and the post station last.
Day by day
Day 1. Start at the Wujiang River Gallery and give it the full two hours — this is the day’s stretch of river-gorge scenery. Move on to the 816 Underground Nuclear Project for another two hours at the underground nuclear engineering site. The third block belongs to the Wulong Three Natural Bridges: two hours among three natural bridges. Finish with two hours at the Tianfu Official Post Station, a historic official post station. Four two-hour stops add up to eight hours, so an early start is the practical default.
Trade-offs
The schedule flexes by dropping whole stops, not by trimming minutes: four two-hour blocks already total eight hours, so shaving each stop just leaves all four feeling rushed. The cleanest cut is the Tianfu Official Post Station — it sits last in the sequence, so dropping it frees two hours at the end of the day without disturbing the first three stops.
Anyone who wants a slower day should run three stops rather than compress four. If scenery is the priority, keep the Wujiang River Gallery and the Three Natural Bridges and cut the 816 Underground Nuclear Project; if the buried engineering is the draw, cut the gallery instead and hold on to 816 and the bridges.