Wanstead Park's visitor centre explores the history of the park from Roman times to the present day.

Discover the therapeutic benefits of essential oils.

A talk by Harvey Sheldon for the West Essex Archaeological Group. Visitors welcome.

An informal gathering for local business owners to socialise and network. Booking required.

A talk by Nicola Munday for the Aldersbrook Horticultural Society.

A presentation by Patrick Craig for The Arts Society Woodford Green. Visitors welcome.

A talk for the North East London Local Group of the RSPB by John Buckingham.

Gloves, litter pickers and bags will be supplied.

Volunteers are needed to go out to the river to locate and assess polluting surface water outfalls. Surveys will take place between March and May. Organised by ZSL.

A talk by Katherine Carter for the Woodford and District Centre of the National Trust. Copies of Katherine's book, Churchill's Citadel, will be available to buy (£20; cash only). Visitors welcome.

Councillors Joe Hehir, Beverley Brewer and Saiqa Qayum Hussain. Repeated on 9 April. Booking required.

An East London and Essex Electronic Keyboard Club event featuring Rod Pooley.