You might find the 'Folk Club Map' has the venues mentioned and it'll give you an idea of just where things are in relation to Northwich.
You might need to copy&paste the link into a browser, don't open it in 'maps', it doesn't work too well.
https://www.google.com/maps/d/u/0/viewer?mid=1plE0C69JOiO8FotbmDlDvE2qxbM&ll=53.234%2C-2.54e&z=10

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Shanties in Liverpool could be good, if they've got a venue ... it's been cancelled a couple of times this year :
Saturday 6 April
run by Trim Rig & a Doxy(Derek & Julia Batters)
http://www.liverpoolseashanty.co.uk