You should also bear this in mind, because even with "Green" destinations there will still be the need to undergo tests:
"Travellers returning from green list regions will need to take a pre-departure test and a PCR test on or before day two of their return, but there is no requirement to quarantine. Arrivals from amber countries will need to quarantine at home for ten days, in addition to tests, while arrivals from red countries must quarantine for ten days in government managed hotel quarantine."