We spent two nights in Nha Trang and to be honest didn't really do much! It's a very touristy beach area and full of Russian holidaymakers! We did a snorkelling tour on one of the days which was great and we saw so many fish! The rest of time we literally just spent on the beach topping up our tans and going for dinner in the evenings! We left on the 28th and caught an overnight bus to Hoi An.