Many upset British travellers were heading home on Sunday, June 6, from a shorter-than-expected holiday in the Algarve, Portugal, before a 10-day quarantine comes into force early next week due to rising coronavirus infections. Destination Guide: #Portugal – Spots that are far from the madding crowd https://t.co/r158Vg8CS8 via @ABTAMagazine @ABTAtravelFrom former capital Coimbra to the…