Twilight tower tours, torch-lit trails and chilling tales will be in store when the city's leading museums and heritage attractions unlock their doors after dark.

The nocturnal goings-on will take place on Friday, May 18, and Saturday, May 19, at a host of venues as Norwich celebrates Museums at Night, a special event offering families the chance to experience attractions in a different way.

Now in its third year, this year's event promises to be the most exciting yet.

Norwich Castle will be the focus of activities on the Saturday with a chance to explore the castle keep by torchlight, watch comic book artists perform live action drawings and meet nocturnal creatures in the natural history galleries.

Elsewhere, the Sainsbury Centre for Visual Arts will be opening its doors from 5pm to midnight and is asking visitors to go dressed in their nightwear.

And on the Friday, there will be storytelling in the Guildhall, printing machines will be in action at John Jarrold Printing Museum at St James' Mill and people will be able to see Norwich at night from the tower of St John the Baptist Roman Catholic Cathedral. Rachel Barrett, project officer at Norwich Heritage, Economic and Regeneration Trust (Heart), said: 'This is a fantastic chance to explore some of Norwich's attractions and heritage sites at night.

'There's also something for everyone –be sure to make the most of this unique after-hours celebration of arts, history and heritage.'

For full details and timings, go to www.heritagecity.org/museumsatnight or pick up a leaflet from Norwich Tourist Information Centre or participating venues.

Are you helping to promote Norwich's heritage? Telephone Evening News reporter Kate Scotter on 01603 772326.