What is your opinion about cruise lines business? E.g. Carnival, Royal Caribbean etc

Some announced that lines will be opened again coming August, on the other end Norwegian Cruise Line had a warning of possible bankruptcy. Cruise lines Stocks are now traded about 60-80% below their yearly average. Of course no one knows what will happen. But what is your general feeling?

Opportunity or stay away?

https://www.dailymail.co.uk/news/article-8307487/Carnival-Cruise-bookings-600-PERCENT-announcing-voyages-restart-August.html

https://www.forbes.com/sites/sergeiklebnikov/2020/05/06/norwegian-cruise-line-raises-over-2-billion-after-warning-of-possible-bankruptcy/#c311522b8716

https://finance.yahoo.com/quote/CCL?p=CCL $CCL

https://finance.yahoo.com/quote/RCL?p=RCL $RCL