Here are my thoughts on how to achieve that etheral glow, minus the balmy tropical weather:
Determine what your skin needs.
Unfortunately for my wallet, I really do think that it is necessary to have two different types of concealer. The first being a thick, creamy formulation that is one shade lighter than your foundation. The thick concealer (blue) is applied on blemishes and redness. The second concealer in your makeup bag should be two shades lighter and should luminize. In other words, it should be less opaque than the first concealer, and more liquid. The second concealer (purple) is used for the under eye area, sides of the eyes, the tip of the nose, sides of the nose, under the eyebrow, and on the chin.
Maybelline has this great double ended concealer. One is thick and covers, the other highlights. Get it, and keep it in your purse for touch-ups, it's a beaut.
Estee Lauder Smoothing Creme Concealer $20(US). This formulation is perfect, it blends, hides, lightens. Really nice, liquid formulation. Could be used as your highlighter if you don't like the idea of shine/sparkle. Clinique Airbrush Concealer $19.50(US), I've been told this is a really good concealer. I love the idea of the pen, great for around the eye area. This is a liquid formula. The Balm Time Balm $17(US). This would be the thicker of the two concealers I recommend getting. Stays put all day after you set it with a light powder.
Yves Saint Laurent Touche Eclait, o.1 oz for $40(US) . I have yet to try this, but I know that many makeup artists swear by it. However, I have a hard time justifying the price considering YSL gives you less than an ounce. But, it's basically a vitamin B shot for your skin. After prepping and concealing apply creme blush.
NARS has great ones because they can double as a highlighter, they last forever in the tube and are worth the pricetag of about $40. Creme blush is perfect for this glowing look because you can really blend it into the skin so it looks like your own natural glow. Instead of powder blush which can sometimes just look like it's sitting on top of your skin.
After prepping, concealing, and blush, finish with a light finishing powder.
Now sit back and enjoy the glow that will inevitably emit from your skin.