3 Min Read LISBON (Reuters) -Portugal will allow holidaymakers from Britain to enter from Monday, the national tourism board said, prompting a sigh of relief from hotel owners already inundated with bookings after Britain’s go-ahead for travel from that day. Slideshow ( 2 images ) Britain added Portugal, whose economy heavily depends on tourism, particularly from the UK, to a “green” list of foreign destinations a week ago, allowing Britons to travel there without needing to quarantine for COVID-19 when returning home. European Union rules prohibit non-essential travel from outside the bloc, making Portugal’s decision to allow in UK tourists an exception.