here are some destinations that may be popular in the summer of 2023, based on current trends and popular destinations from previous years. 
 
 Greece:  Greece has always been a popular summer destination thanks to its beautiful beaches, ancient ruins and charming islands. 

 Italy: Known for its delicious food, rich history and beautiful coastline, Italy is a great destination for summer vacationers.
 
 Spain: Spain's beaches, vibrant cities and rich cultural heritage make it a popular choice for summer travel. 

  France: France is home to some of the world's most famous landmarks, such as the Eiffel Tower and the Louvre, as well as beautiful beaches and picturesque landscapes. 

Croatia: Croatia's stunning coastline, crystal clear waters and historic cities have made it a popular summer destination in recent years. 

  Portugal: Portugal's sunny weather, beautiful beaches and delicious cuisine have attracted tourists in recent years.
  
 Thailand: Thailand's tropical climate, beautiful beaches and rich culture make it a popular destination for summer vacationers. 

 Mexico: Mexico's beautiful beaches, vibrant culture and delicious food make it a great destination for summer vacationers. 

 Of course, there are many other destinations around the world that could also be popular for summer travel in 2023. It's always a good idea to explore your options and choose a destination that suits your interests and travel style.