If you're heading for an alfresco feast in London's parks, on the canal or, basically, anywhere the sun hits, forget lugging around a basket of warm sandwiches from home. Here are the best London picnics for you to pick up and enjoy at your leisure.

Fancy having a central London picnic but without the hassle? You could always choose a ready made hamper and pick a favourite spot or alternatively let the Marriott in Grosvenor Square do ALL the work for you. 

The square will be filled with deckchairs and picnic blankets while a converted Citroen camper van will