Valencia/Castiello de Jaca
Re: Coming to Valencia, need suggestions boargame related (and not)
Beside Valencia city near the airport you have a very good event http://jocsquart.com/es/rol-en-quart/evento but it begins the last day you are here.
The best shop is the one ardacho has said.
And for places of touristic interest there are very good traveller guides at the tourist info office. But don´t forget to visit the Mercado Central in the heart of the city and netx to it the Lonja.