QUANG NINH, VIETNAM - MAY 31: Vietnamese tourists visit a cave site within Ha Long Bay complex, after the Vietnamese government eased the lockdown following the coronavirus disease (COVID-19) outbreak. Though some restrictions remain in place, Vietnam has lifted the ban on domestic travel, certain entertainment facilities and non-essential businesses to revive its economy. As of May 31, Vietnam has confirmed 328 cases of coronavirus disease (COVID-19) with no deaths in the country, 279 fully recovered and no new case caused by community transmission for 46 days