The fact that rules can change frequently makes things more complicated. Last week, Spain's nighttime curfews that prohibit people from going outside at night between 1 and 6 am were reinstated.It could be disappointing if you're here to party, but if your goal is to enjoy the Catalonian area and its culture, then you won't be disappointed. Mallory Hill, 37-year-old banker from Seattle, says that the restrictions don't really apply to her. She is on a two-week trip with her family around the region.It is alarming to see how fast the cases are rising and the increasing number of people who have been vaccinated. She said that there is a lot misinformation out there and it can be difficult to decide if we should stay or return home. It's pretty awful everywhere.Even official advice can be contradictory. The U.S. State Department issued do not travel warnings for Britain, Portugal, Cyprus, and Spain on July 26 due to an increase in coronavirus cases. This raised the alert level to 4. Just days later, the British government announced that Americans who have been fully vaccinated could travel to other countries without quarantine.It can be difficult to visit Britain because of the complex traffic light system. This system determines restrictions based upon where you are from. The list can change every three weeks or earlier depending on the status and emergence of coronaviruses in each destination.Americans who are not from the United States do not need to quarantine. However, French citizens visiting France for the first time would be required to quarantine and undergo multiple tests due to concerns about the Beta variant's prevalence in France.It is not easy to travel from Britain to the European Union. Due to the high prevalence of the Delta variant in Britain, a growing number of EU countries have imposed additional precautions for British travelers. Visitors from Britain must have a negative Covid-19 test prior to departure. They also need to be quarantined for five days after arrival and another negative test at their return.