Mui Ne is the adrenaline capital of southern Vietnam. There’s no scuba-diving or snorkelling to speak of, but when Nha Trang and Hoi An get the rains, Mui Ne gets the waves: surf’s up from August to December.
If playing in the waves sounds like too much hard work, you can simply lounge around on the beach or indulge in a spa treatment or yoga session. There's an excess of spa/massage places – at least 25 or so – along the Mui Ne strip. Most are low quality, offering body massages from as little as US$8 per hour.
For kitesurfers and windsurfers, the strongest gales blow from late October to late April, when swells can stir things up big time.
Consider investing in a short kitesurfing lesson before opting for a multiday course, as it's a tricky skill to master. Bear in mind it is an extreme sport and most places will not offer a refund for anyone who drops out.
Mui Ne also has an excellent sailing school.