This document provides recommendations for things to do in London during different weather conditions. It suggests going ice skating at Somerset House when it's very cold, visiting three museums in South Kensington when it's raining, and going to Hampstead Heath for a picnic and swim when the sun is shining. Hampstead Heath is described as London's biggest park where you can see famous monuments from the top of Parliament Hill and swim in the open-air pool surrounded by plants and trees, feeling like you're in the middle of nature despite being in the capital city.