There are two events that might be of interest to you.
Classic Cars and Coffee at the Kilton Inn, Warrington Road, Mere, Knutsford, WA16 0PZ from 10:00am to 1:00pm. This is an informal get together, arrive and leave as you wish.
60 Years of the Mini at St Helens Transport Museum – 4th August – The organisers are looking for Minis to attend this event in the old “Bus Garage” in St Helens (i.e. indoors) They do need to know who is coming as space is limited, there are some places left so if you would like to go please reply asap