Beach vacation or mountain vacation?

Beach tourism is the world's largest tourism segment, accounting for about half of all international leisure trips. Coastal recreation expanded in the 18th century when British doctors prescribed sea bathing for health; Brighton became a fashionable resort by 1750. The French Riviera (Cote d'Azur), Spanish Costa del Sol, and later destinations like Cancun (developed by Mexico's government from 1970), Bali, and the Maldives followed. Beaches form when waves deposit sand, broken-down quartz, coral, or volcanic rock, over thousands of years. Saltwater contains roughly 35 grams of dissolved salts per liter, and floating is easier in seas like the Dead Sea (342 g/L). Sun exposure boosts vitamin D synthesis, but UV rays cause sunburn and skin cancer; SPF 30 blocks about 97 percent of UVB radiation.

Mountain tourism dates back to the Romantic era of the late 18th century, when writers like Jean-Jacques Rousseau and painters like Caspar David Friedrich popularized alpine scenery. The first ascent of Mont Blanc (4,808 m) was achieved on August 8, 1786 by Jacques Balmat and Michel Paccard, sparking modern alpinism. The Swiss Alps, the Rocky Mountains, the Himalayas, and the Andes attract millions of hikers, skiers, and climbers annually. Chamonix hosted the first Winter Olympics in 1924. Mountain air contains less oxygen, about 70 percent at 3,000 m, prompting altitude acclimatization. Temperatures drop roughly 6.5°C per 1,000 m of elevation. National parks like Yellowstone (founded 1872, the world's first), Banff, and Zermatt's Matterhorn region offer biodiversity hotspots and breathtaking views.