It is possible to cross into Vietnam by bus from Cambodia or Laos. The most popular way from Cambodia is a cheap tourist shuttle via the Bavet–Moc Bai border crossing. From Laos, most travellers take the nightmare bus from Vientiane to Hanoi via the Cau Treo crossing or the easier route from Savannakhet in southern Laos to Hué in central Vietnam via the Lao Bao border crossing.