The cache is not at the published coordinates - they are for the carpark in front of the Riddell Hall. There is an interesting blue plaque on a house nearby, which gives you one of the answers for Part 2, but on the cache page for Part 2 I give you an alternative way of finding the answer.
Then park at N 51° 16.545 W 000° 14.505
Each cache/geocheck has a clue for the next one.
Cache is at 51.1x.xxx 0.1x.xxx
Raised difficulty based on feedback, and added some clues as people seem to struggle with the start of this series.