Finally a PCR test would have to be taken 72 hours before return and only negative results would be allowed to enter the UK. This test had to be done in a French lab as UK immigration won’t accept our own NHS tests.
For Double-Vaccinated people with a UK Passport, only Antigen test was required. (Lateral Flow)
We had ours done on Sunday after the race at a nurse friend of ours (Friend of a friend), for £25.00 per test, instant result and she registered it for us there and then.
All in all - I agree, it was a lot easier to travel than expected, particularely if all your ducks were in a row in advance.
(UK Passenger Locator form was the most tricky bit)
Didn’t know about the Lateral flow option we just went with the list of requirements on the tunnel booking. Yes the Passenger locator was a pain to fill in. But, it all got us there and back so a little effort went a long way.