Technically it is possible in summer - but not possible in March! this is still rough weather season with sometimes NE monsoon conditions throughout Central Vietnam coastline. There is no ferry doing this so you will have to find a company willing to charter a speedboat because this is a long distance of at least 80 km. Lagoon in Hue is amazing stretching for about 150 km.
#3 Pablot has been a member since 4/5/2009. Posts: 102