What do Wen Tianxiang's poems call "a small ocean" and "a panic stall" respectively? It's not profound, I mean where are these two place names?

Fear Beach: In today's Ganjiang River in Wan 'an, Jiangxi Province, the current is fast and extremely dangerous, and it is one of the eighteen beaches of Ganjiang River. In the second year of Zong Jingyan, Song Rui, Wen Tianxiang was defeated in Jiangxi and retreated to Fujian via Weitan. Lingdingyang: that is, "Lingdingyang", now in the Pearl River estuary south of Zhongshan City, Guangdong Province. Wen Tianxiang was captured by the Yuan Army in December of the first year of Zhaomin Xiangxing in the late Song Dynasty and imprisoned in a warship. In the first month of the following year, Yuan Marshal Zhang Hongfan attacked Cliff Mountain, forcing Wen Tianxiang to hand over Zhang Shijie, the commander-in-chief who stuck to Cliff Mountain. So, Wen Tianxiang wrote this poem.