There were also calmer, awe-inspiring moments that, while less dramatic, left a lasting impression.
"The day we did the long hike over the mountain and down again, we came across a beautiful lake," recalls Anna. "Just beyond it was a big patch of snow, and we all ended up in a huge snowball fight. For many, it was their first time seeing snow. That was really memorable for me."
Charlotte’s favourite moment? Seeing marmots lounging at an off-season ski resort. "I had researched the flora and fauna of the Pyrenees before the trip, and marmots really stood out to me—they are amazing, adorable creatures," she says.
As the expedition progressed, others spotted many marmots, while Charlotte had only glimpsed one from afar. Thankfully, lead scientist Bernat knew just where to find them: at a nearby ski resort where the marmots gather on summer afternoons. "So, after hiking and showering, we all jumped back into the vans and went to see a bunch of marmots. It was fantastic."
Natalia says the trip deepened her appreciation of nature. "I now better understand the urgency of protecting the environment. Being that close to nature makes you realise how quickly it could vanish because of human impact. That awareness is something I will never forget."
For Lucia, the friendships stood out most. "I did not expect to become as close to people as I did. I have been on other hikes where we met people but did not stay in touch. This time, we said we would, and we actually did. I still talk to some of them almost every day. I had not realised how much I missed them until we saw each other again like this."
The group is already planning to reunite on another Earthwatch expedition next summer—perhaps an archaeological dig on "Unearthing Ancient History in Tuscany."
Hannah says the experience gave her a clearer picture of what a science career could look like, something she hopes to pursue at university next year. "Unlike being a doctor or accountant, I never had a clear idea of what scientists actually did. But now, I have a much better sense of what the job involves—and it is really interesting."
Charlotte, on the other hand, is not planning to study science but joined for the hiking and the challenge. "The whole experience was amazing. Meeting new people, pushing myself physically, everything about it was just incredible."
Others agreed the expedition pushed them to their limits—but in the most rewarding ways.