If you're talking about ski resorts that are in the actual tropics, then no. Pretty sure that doesn't exist. I don't know of any ski lifts in the tropics at all, much less ones that are within a short drive of the beach.
Edit: I looked it up and I take it back. There's a ski area outside of La Paz, Bolivia at 17,000 feet that's technically within the tropics. It's about 9 hours from the beach though. Unless you count the shores of Lake Titicaca as a tropical beach.
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