Keep your eyes peeled at Bai Chay Market — you're bound to find some treasure or trinket in one of its many stalls. After you've admired the wares, grab something to eat from one of the nearby food vendors.
When you've spent some time at this Bai Chay community marketplace, why not make your way to Halong Bay Marina, Ha Long Night Market, and Tuan Chau Beach? They're near Bai Chay Market and also popular with many tourists.