Froggie fun

Admire the frogspawn and learn more about these increasingly rare amphibians at one of two weekend events being organised by London Wildlife Trusts. In Richmond they're promising froggie family fun, while in Southwark you can see pond life up close.

Shot Tower, Crane Park Island, off Ellerman Avenue, Twickenham, Surrey (07702 669 888). Sun 7 Mar, 2pm, free.

Centre For Wildlife Gardening 28 Marsden Road, SE15 (020-7252 9186). Sun 7 Mar, 12.30pm-4.30pm, free.