What to do for career in travel journalism after 12th?
You need to do your Bachelor’s degree in Journalism or Mass Media after 12th.
There are very few institutes that offer a Travel Journalism course specifically.
Once you do your graduation you can work in a travel industry or sector, or work for journals that write on travels. Importantly, you should do lot of travelling and observations to understand and write about travels.
You should also have a good command over the language, which you can polish with extra classes for language.
There are other option of doing a professional course in writing. Check out for institutes near your area that offer professional course in writting, and then you can look out for jobs in writing.
Once you get the degree, you can start writing in newspapers, magazines, journals, or websites that is related to travel, travel experiences, travel shows etc., that are held with a personal insight.