We all find ourselves in difficult circumstances. The government has written to us all explaining what we should, and shouldn’t be doing. There have be cases of family visitors to the park. On the frequently asked questions (FAQs) published on the government web site there are clear instructions: Family members should not be visiting relatives other than to drop on shopping and medication. The guidelines specifically state that you should not go inside the homes of anyone you do not live with with, especially vulnerable people. Keeping the 6 feet distance from them is important and to avoid all contact. Support via telephone and other media should be considered rather than in homes. STAY AT HOME AND SAVE LIVES.
For details please see https://www.gov.uk/government/publications/coronavirus-outbreak-faqs-what-you-can-and-cant-do/coronavirus-outbreak-faqs-what-you-can-and-cant-do