The Best Mountain Destinations for a Summer Adventure

Explore the best mountain destinations for a summer adventure, featuring scenic trails, outdoor activities, breathtaking views, and memorable experiences.

Beach holidays have long dominated British summer travel, but something is shifting. As Mediterranean heatwaves become more intense and crowds more relentless, mountain destinations are drawing record numbers of visitors seeking cooler temperatures, dramatic scenery, and proper outdoor adventure. According to research published by Active Outdoors in April 2026, nearly five million UK travellers now take mountain holidays outside the winter season, more than double the number who ski. Here are four destinations worth putting at the top of your list.

1. The Alps: the classic choice for summer adventure

The Alps offer an almost embarrassing range of summer activities with hiking, mountain biking, wild swimming in glacial lakes, via ferrata, and scenic rail journeys through some of Europe's most breathtaking landscapes. Many resorts that built their reputations on world-class ski holidays in the winter months now attract just as many visitors during summer, with cable cars and chairlifts repurposed for hikers and cyclists. France's Chamonix, Austria's Innsbruck region, and Switzerland's Zermatt all offer exceptional warm-weather programmes, while Italy's alpine valleys add excellent food and culture to the mix. The infrastructure is already there, and summer visitors simply get to enjoy it in considerably warmer sunshine.

2. The Dolomites: dramatic landscapes and outdoor experiences

Few mountain landscapes anywhere in the world are as visually striking as the Dolomites. The pale, jagged peaks, protected as a UNESCO World Heritage Site, create a backdrop that makes even a gentle walk feel like something special. A well-developed network of marked trails connects charming mountain villages, with rifugios providing food and accommodation along the way. Cortina d'Ampezzo, traditionally known as a glamorous winter resort, has seen growing summer footfall in recent years as active travellers seek its high-altitude trails and cooler air. The region rewards those who go beyond the well-known viewpoints and explore on foot.

3. Slovenia's Julian Alps: a less crowded alternative

For travellers wanting alpine scenery without the summer crowds, Slovenia's Julian Alps are increasingly hard to overlook. Triglav National Park, Slovenia's only national park, offers hiking, kayaking, wild swimming, and some of the most impressive mountain scenery in central Europe, all at a fraction of the cost of the better-known Alpine resorts. Lake Bled and Lake Bohinj provide stunning bases for exploration, while the emerald Soča River valley offers world-class kayaking and gorge walking. eDreams ODIGEO's June 2025 research found that searches for cooler destinations among UK holidaymakers grew by up to 47% in summer 2025, and Slovenia sits perfectly in that sweet spot.

4. High-altitude escapes for the coolcation trend

For travellers specifically seeking relief from summer heat, high-altitude resorts offer something the lowlands simply cannot match: consistently cool, fresh air regardless of what the thermometer is doing further south. Zermatt in Switzerland, Val Thorens in France, and Obergurgl in Austria all sit high enough to guarantee comfortable temperatures throughout July and August, with full programmes of hiking, cycling, and wellness activities running alongside their winter operations. These are destinations built for mountain living year-round, and summer is when they shine brightest.

Mountain summers offer something genuinely different from the beach holiday formula: fresh air, physical challenge, and landscapes that stay with you long after you've come back down to earth.