Mermaid Quay is Cardiff Bay's waterfront destination, with a range of food & drink options, a cinema and boat tours of the bay all a stone's throw away from Roald Dahl Plas where you can connect into the city and further afield on a wide variety of our services. Our tip - from the square head back inland to grab some of the city's freshest welshcakes to take home, or head further along and grab a drink with a view across the bay.