Dr Mario Hardy, CEO, PATA, has said that, while travel bubbles and green corridors are a great idea, but there is a lot of complexity involved in setting them up. “It is not a simple task. There are bilateral agreements involved between the two countries. It’s not only the immigration department involved but also health departments and ministries of health of the respective destinations. However, the countries need to agree to have enough trust in the healthcare system of the respective destinations to allow people to travel across their borders.”