JiMei and TongAn Bays are protected by Xiamen Island so they do not get ocean swell. Waves for downwinding are produced by local wind. The best conditions for downwinders happen in December to February with NE wind.
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Tidal Bores
Silver Dragon - Qiantang River, Haining & Hangzhou - not really a good surfski surfing wave where it gets too steep or breaks