We took an overnight sleeper train from Saigon to Nha Trang. It was an interesting experience! There were 4 of us sharing a cabin, Jo and I were making ourselves comfortable on the bottom bunks when Jo suddenly spotted a small mouse crawling up the telephone wire! Chenda came in and looked everywhere for it but couldn't see where it had come from and Jo began to think she had imagined it. We settled down to sleep when I spotted the mouse poking it's head out from between our rucksacks. After that we both found it difficult to sleep as thoughts of the mouse crawling over you in the night kept us awake, and the train was very noisy.
Nha Trang is a coastal city with lovely sandy beaches. We went to some mineral mud baths which are supposed to be good for your skin and then spent a day on the beach, before catching another overnight train to Hoi An.