Why Da Nang, not Hanoi or Saigon
Da Nang is the calmer alternative to Vietnam's two megacities. It has a real expat teaching community, a long beach, and rents that are noticeably cheaper than District 1 in Ho Chi Minh City or the Old Quarter in Hanoi. That makes it a popular first stop for teachers who want lower stress while they build a CV.
The tradeoff is volume: there are fewer schools than in HCMC, so the job market moves slower and word-of-mouth matters more than job boards.
