Jinjiang Lou

This round tulou can be visited on the way to the better known Jinjiang Lou. It may not be well sign posted; you may first identify it with Google Maps satellite view. Unlike Jinjiang Lou, Rui'an Lou has no residents living in it. In fact, it had all its wooden parts and the roof removed, with just the round shell standing. A typical inland-Fujian tulou in this condition would have soon fallen apart due to erosion caused by rain. But this round structure built out of a combination of granite and, perhaps, somewhat tougher adobe than used in the interior, endures, like a small Coliseum. Some cracks have appeared though; it is not clear what the authorities and weather are going to do to it (it apparently had some parts renovated), so visit it while it's still standing in its present condition!

Watch for the sign that says, in Chinese and English, "皮定军将军陵园 General Pi Dingjun Cemetery / (八卦堡) Bagua Castle" on Hwy S201 west of Shentu Town (around the 800 km marker, and just a couple blocks east of the turnoff for Jinjiang Village / Jinjiang Lou, above). Follow a steep winding road north for about 5 km until you see a small parking lot and a statue of the general.
Lt. General Pi Dingjun, apparently a figure of some renown in PLA's history, died in 1976 when his helicopter flew into a mountain near Dongping Village. He (and everybody aboard) is commemorated by a memorial complex constructed mostly in a cultural revolution style, combined with a traditional coastal Fujian turlteback tomb. Most of the complex is right next to the parking lot, but there is a long stairway up the mountain, built out of the local granite (to last for centuries!), to the actual site of the crash. Unfortunately, your climb will not be rewarded by a particularly great view, since the view from that point is mostly blocked by rocks and trees.
The 5-km uphill trip may not be worth it unless you are a military history fan (or an air disaster fan?), but views from the road are pretty good. The visit can be combined with visiting the Bagua Fortress.

In Dongping Village, about 400 meters after you pass Pi Dingjun Memorial (see above). Once in the village, you will see its main square and a new temple on the right (east of the main street). Walk around the temple; that's where the so-called Bagua Fortress is.
This is not really a fortress, but just a community of rather dilapidated local homes that have been constructed in concentric circles, somewhat like the plan of a tulou. This complex appears very distinct on Google Maps satellite view, but may not be as impressive up close.

A somewhat renovated and cleaned up neighborhood of traditional local gabled homes. Although not a destination in its own right - you can see many such buildings elsewhere in the region - it is only a short detour off X523, and the road to it is well signed. Please be respectful to the residents.

"Liu'ao Abstract Art Gallery" (or, literally, "Liu'ao Abstract Picture Gallery") is the name for a section of a rocky promontory separating ??? Bay and Da'ao Bay, where erosion has created a number of unusually shaped stones. Many of them have their own names (see on Baidu Maps or Google Maps), but, as with any abstract art, you can use your fantasy to see things in the stones.
A long beach starts north from the promontory. See "Beaches" below. There is a restaurant and some typical beach amenities near the parking lot.

Various tourist traps: sand sculpture park, "ice world", "legendary animals park", all right next to the beach on the Ao Bay. While actively advertised, it probably is not worth the admission for most visitors.