Most definitely Barcelona! Just so much to do. Of the city’s museums, the ones most likely to capture children’s imagination are the Maritime Museum with its old ships and cool audiovisual displays; the deliciously hands-on shrine to all things chocolatey, Museum of Chocolate; the enjoyably creepy wax figures of the Museu de Cera (waxworks); and the interactive CosmoCaixa, a mecca for knob-twiddling kids of all ages.
The city is between two mountains, and Montjüic is the one looking over the sea. There are two cable car rides from Montjüic – one which crosses the sea over to Barceloneta and the beach, and the second which transports you up to the old castle. Both offer great views of the city and will be a sure-fire hit with the kids.
The Gothic Quarter’s warren of medieval alleyways is great fun to explore, and one of its hidden treasures is the original Papabubble store on Calle Ample where jewel-like sweets are made by hand.
A free light-and-music spectacular runs at the Magic Fountain year-round in the evenings – but the show timetable varies considerably (and can close in winter) so check the website for details.
ride the vintage blue tram and then the funicular to the tip of Tibidabo mountain for the amusement park with rollercoaster sand rides.
The aquarium is also well worth s visit. Apparently it has Europe’s largest sea tunnel and a day’s worth of tanks, special exhibitions, marine history, and some really funny penguins!
A great place to escape the hustle and bustle with youngsters is the Cuitadella Park which has the city zoo, row boats and plenty of space for a kick abou
Eat at Bobo Pulpin in the Gothic Quarter. It serves reasonably priced, quality tapas in a cartoon-decorated environment. There's also a fantastic place on La Rambla called Odyssey.
Of course, no visit to Barcelona should go without a visit to Gaudi's park and house. Full of quirky curiosities round every corner perfect for exploring.