When considering a day trip from London, Cardiff is a great choice.
Cardiff is the capital of Wales. Being one of the most historical cities in the UK, there are many things to see while you are staying there. Cardiff Bay is home of the BBC Studios which are used to film the iconic, cult classic TV show, Doctor Who. For the ultimate fans, they run a “Doctor Who Experience” tour. Also, one of the most impressive castles in Britain, the Cardiff Castle can be traced back to the Roman conquest of the 3rd. Commissioned by William the Conqueror, the castle was built in the 11th century. The castle itself is packed with historical artefacts and includes the secret tunnels which were used as war-time shelters. In addition to Cardiff Castle, Castell Coch (The Read Castle) is located north of the city centre. Designed by William Burges for the Marquess and built in the 1870s, the castle was built as a Victorian retreat. However the castle stands on the footings of a medieval castle possibly built by I for Bach, a regional baron with links to the Cardiff Castle.
For the sports fan, the Millennium Stadium in Cardiff is a must visit. Located in Cardiff, the stadium stands with a UEFA 5star rating, two Rugby World Cups, a Wales Grand Slam, and six FA Cups Finals. The stadium opened in June 1999 and was the first stadium with a retractable roof in the United Kingdom. The stadium is also used for concerts, motocross events, and other events.
In terms of shopping, Cardiff has a number of glass covered shopping arcades that were built during the coal bonanza under the reign of Queen Victoria. Today, the arcades are filled with anything from local artwork to high end olive oil. The Cardiff Central Market is filled with candy shops, fish stands, and fresh produce stands. Inside the Morgan Arcade you can find Spillers Records, which has been selling music since 1894. These shops are all well loved by the locals and a great place to stop off before you head back to London.
Getting to Cardiff from London is a quick 2 hour trip. Just take the train from London Paddington train station to Cardiff Central. Also check out top attractions near Paddington Station while you wait for the next rain. While staying in London before you trip, why not stay at the Grand Park Hotel London Hounslow and also consider take one of the Top London sightseeing bus routes.