Hi
I've heard that in Da Nang (and elsewhere) you can't swim in the sea unless you travel there around june - august, otherwise the waves are too strong and therefore swimming is not allowed.
Is this the case everywhere in Vietnam? Is there a region where it's safe to swim in the sea all year? This is important for me, since being able to swim in the sea / snorkeling is one the primary reasons for visiting the country.
Thanks in advance!