Cardiff bay has a lot of good restaurants and pubs but there are not many shops.  The Bay is a nice walk with the Norwegian Church (which serves yummy cakes), the Millennium centre, the Welsh Parliament, the science centre, the views of the barrage, and the walk around the bay. Past the St David’s Hotel (a large white building with sails on top of it) is a quiet salt flat with lots of birds on it. A good way to see the bay is on a Ferry across to Penarth to see the barrage and all the boats moored, and spend time at the sea gates watching the boats come in from the Bristol Channel. Those of you who like Torchwood or Doctor Who will also recognise many of the locations. The Bay is certainly worth a look round.