Tame Hair at the Beach
A: When you say "tame your hair" are you referring to preventing frizz caused by the heat and humidity? If so, then you can generally get good results using a smoothing serum during the initial styling along with a stong-hold styling product.
If you are instead referring to keeping the hair controlled in the wind at the beach, I would recommend the above treatment, plus the use of some gentle confinement tools, such as a silk scarf wrapped Alice-band style around the head to give you some control over the hair.
If the problem is simply a matter of needing a little extra "texture protection", consider using a leave in conditioner when styling and use a "spray laminator" on the finished hair to seal the cuticle. These very light oil mixtures smooth the cuticle, seal in (and out) moisture and give the hair a little more silkiness and smoothness of texture, so that wind in less likely to cause snarls and tangles.
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See also:
How to maintain your hairstyle in humid weather
Weather and your hair
Hair and sun exposure
Sunshine and your hair