A very Derry Halloween: a carnival of frights, fireworks and parades

Derry’s Halloween celebration is Europe’s biggest, one of the highlights of its cultural calendar with a week of creative events

Ai Weiwei installation set to shine at Amsterdam Light Festival

The Chinese artist’s piece, Thinline, which represents a theoretical border, takes pride of place among 36 installations at the city’s land- and canal-based annual light festival

Summertime … and Lisbon’s jazz festival is free – and a great way to see the city

The Out festival sees jazz concerts (plus soul, funk and hip-hop) in city parks and at the seaside in Cascais and Estoril every weekend until the end of September

Party in the sea – between the Isles of Scilly

The Low Tide Event is the ultimate pop-up, a mini festival held only twice a year when the sea recedes far enough to expose a sandbank linking Tresco and Bryher