The Royal Philharmonic Orchestra will play a medley of classical hits at the 5km event in Battersea Park. Participants will aim to complete the course before the conductor puts down the baton after the final chords.
The charity is recruiting runners of all abilities to join what it hopes will become an annual event. It is using online and press advertising in London newspapers. It has also employed a team of face-to-face fundraisers to recruit runners at railway stations and shopping centres in the capital.
Participants are offered a training pack, plus cheering squads and physiotherapists at the event.
Trees for Life, the charity dedicated to restoring the Caledonian Forest in Scotland, is hoping romantic supporters will dedicate a Scots pine or a grove of pines planted in the forest to a loved one this Valentine's Day. The I Love Pine campaign, which runs from 1 February, offers supporters the chance to sponsor a pine tree for £15 and receive a certificate.
The Royal British Legion's Poppy Appeal will receive 4 per cent of the 99p sale price of specially branded packs of Anzac Biscuits at Tesco stores.
The biscuits, a household name in Australia, are named after the Australian and New Zealand Army Corps that fought alongside British forces in the First World War, notably in the Gallipoli campaign.
Tommy's, the baby charity, has created an online clothing and gift shop, fronted by Nancy Sorrell, wife of comedian Vic Reeves. The shop features branded men's and women's fashion, including T-shirts, tops and jackets, and baby clothing.
Barnardo's is calling on the public to donate unwanted books to its local shops. The Barnardo's and Ladybird Book Appeal runs until 19 February.
The publisher will also be donating brand new books to Barnardo's projects throughout the UK.