The main reason that we went was because it is next door to Grimsby - more about that tomorrow.
I spotted that Cleethorpes is on the Meriden line and exactly north of Greenwich, so I wanted to visit the little line on the pavement. Unfortunately it was pouring with rain and we ended up accidentally paying £2 to park near to the pier.
It's rather short, but very pretty and there was even a few donkeys giving rides up and down the sand.
Of course I had to have an ice cream and very nice it was too - English butter toffee.
The tide was out so we only saw the sea from a distance, but we could also see right over to the other side of the estuary.
In the end we decided against walking up to the meridian line, so the best I can do is guess that we probably crossed it without realising quite where.