2020 was a horrible year. I've put the dummy co-ordinates at the hospital to celebrate those who were the real heroes - the doctors and nurses. Please stay safe during the pandemic.
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This cache is inspired by series such as 'X' Marks the Spot, Surrey Arts and Surrey Residents, where you have to identify a person who has a Surrey connection. However I've made it a stand-alone puzzle as it doesn't quite fit into any of those series.
X and Y met at the latter's "Surrey residence", which is within 2 miles of the dummy co-ordinates.
Many of Y's ancestors lived near here too, though it was claimed to be somewhere else. X wasn't born in this country, but it is their adopted home.
X doesn't drive a car now but they had one when they met Y. The digital root of the name they called it is m.
X now has a vehicle that happens to have the same number of letters in its name as that car (but it has a different digital root).
A few weeks after meeting Y, X made an important discovery that saved many lives.
Y's chilling plans for 2020 were revealed on ab-cd-efgh (dd-mm-yyyy).
Mystery location
Go to the mystery location (100 metres to the west of Y's "Surrey residence") where you will find a white plaque. The words on it are connected with how the plans were revealed. You will also find a six digit number pqrstu.
Final location
You will find the cache at:
N51 1 (q-b) . (d) (r) (c)
W000 3 (m-a+p) . (f-s) (h) (g-u)
Lizard people?