Hi how are you

Regarding your inquiry about obtaining a visa to visit Britain with family, please note that you can obtain the visa through the British Visa Center, as the British Embassy is not specialized in issuing these visas. Or refuse within 3 weeks. You can usually stay in the UK for up to 6 months and a visitor visa costs £95. A visitor is someone coming to the UK, usually for up to six months, for a temporary purpose, for example as a tourist Visitors can only work or study in the UK if permitted by the permitted activities described in these Visitor Rules and the passport must be valid for six months
You can obtain a visa through the Visa Center via the following link:
gov.uk