destination on the uk's green list — but those returning from there after 4am on tuesday will now have to isolate for ten days and take two coronavirus tests. the bbc�*s transport correspondent caroline davies reports. it was a brief moment in the sun. after three weeks, portugal is off the green list. for passengers heading out there today, the news came as a shock. gutted, really. but, anyway, it is what it is. i understand, but we can't quarantine when we come back. we've got to work. so we just had to cancel everything. frustrating. it's not a problem for me, i'm retired. but my daughter was coming out with her friends on sunday. they've now had to cancel. so four of them are really disappointed, i guess. i definitely can't quarantine - for ten days when i come back, due to business commitments. so i probably... i will make a decision very shortly as to - whether i go at all. in portugal, beach bars