Hand-ground cha muc, a speciality of Ha LongVietNamNet Bridge – Visitors of Ha Long City can enjoy fresh seafood to appease their hungry stomachs, but they can also enjoy the local speciality of cha muc — fried ground squid cakes. Crunch: Workers grind cha muc in Ha Long City. Since then the dish has been known as cha muc Ha Long. Big business: Cha muc Ha Long for sale. Money maker: Yellow grinded cha muc sells very well in Quang Ninh’s Ha Long City.