A TEFL certificate from OnTESOL is your ticket to getting paid to take a trip the world. , if you truly want to see the hidden gems in any country you have to know where the locals go.. These secret locations never make it to the tourist pamphlets. An accredited TEFL certification is the first step to getting a great task in the country of your choice. Depending on how much money you wish to make, you can take the 120 hours TEFL certificate or get complete TEFL certification with the 250 hour TEFL course. You can do all courses online.