A Snapshot of CTSS & Mike Hamill's Success


Expeditions under Mike Hamill’s guidance have maintained a 91% expedition success rate overall, with an 80% client success rate on all expeditions.
Mike has led well over 120 expeditions and thousands of clients over 20 years on all seven continents.
Well over 150 climbers have stood on top of 8000m peaks under Mike’s direct guidance.

Here are some of Mike’s stats:

Don't take our word for it... Hear it directly from the climber's mouth

"I climbed Mount Vinson in Antarctica with CTSS. Their leadership was outstanding. Not only did they help me in any possible way during my months of preparation with tips and all necessary paperwork, they continued showing and executing their professionalism on the mountain as well. The food was excellent and added to the mood of the team. They really made the effort, over and over again, to include the team in decision making and made sure everyone got the attention they needed during a big climb like this. Absolutely fabulous. I highly recommend CTSS.”

- Arnaud, Netherlands

"I am transformed forever! If you want a life-changing, positive experience with guides who have heart and tons of experience for your personalized journey to the summit, CTSS and its local guides are the Mount Kilimanjaro choice. Ethical business practices that build up guide/porter team families and the local economy, made me feel happy to be their clients in even more ways. Do it now!"

- Marie Miyashiro, United States

“I will never forget that you believed in me when I didn’t believe in myself. For that I will always be grateful.”

- Jason V

Your Safety & Success are our priorities.It's what makes us the most trusted Mountaineering Guide Service in the world.

91%

Expedition success rate

200+

Climbers on top of 8000m peaks

82%

Climber summit rate

"I had the time of my life on the EBC trek and am so grateful for the opportunity! I truly had lots of fun every day meeting and getting to know people from all over the world, learning about the Nepal culture, eating their food, listening to everyone's stories (so inspirational), and I felt connected to so many people. The Sherpa, all guides, cooks, staff, and porters were simply the best! No doubt, CTSS employs quality, compassionate, funny, knowledgeable, and inspiring team members to ensure our safety, well-being, and happiness along the journey! Very pleased with the entire CTSS logistics and total operations. Again, thanks to CTSS, I had the joy and best experience of a lifetime! I look forward to returning to Nepal in the near future and continuing my journeys through more treks and mountain climbs around the globe with none other than CTSS!"

— Julie M, United States

"The word trust comes to mind when I think about CTSS and why I will continue to engage them in future. When undertaking activities as serious as mountain climbing you need people you can trust, not to just make the good times happen but who have your back if things go bad.”

- Scott Gorman

“You guys are doing a fantastic job and although I’m just a client, I felt proud to be wearing a CTSS cap and it probably sounds silly but I felt honoured to hold the CTSS flag on the summit because of the way you conduct yourselves as a company. The way the expedition was put together was professional yet relaxed and I enjoyed every bit of it, seriously, the best experience of my life.”

- Tom D, Australia

"I recently had the privilege of embarking on a climbing expedition and summit attempt to Aconcagua, and I cannot express enough how exceptional the entire experience was. Opting for CTSS's custom private climb marked my second journey with CTSS and guide Nanika ‘Nani’. The custom private climb allows for greater flexibility in the schedule and additional time for acclimatization to the higher altitude. From start to finish, every aspect of the trip was meticulously organized, showcasing a level of professionalism and guide competency that truly set this adventure apart."
  • Organization: The organization of the Aconcagua expedition was impeccable. Right from the initial planning stages to the moment we descended from the summit, every detail was thoughtfully considered. Pre-trip communication was clear and thorough, ensuring that I was well-prepared for the challenges that lay ahead. Logistics, including transportation, accommodation, and meal arrangements, ran seamlessly, allowing me to focus on the climb itself. The attention to detail was evident, creating a sense of confidence and ease throughout the entire journey.
  • Guide: The expertise and professionalism of Nani were truly commendable. Nani's knowledge of Aconcagua and mountaineering in general instilled a sense of trust and security. Nani demonstrated exceptional patience while providing insightful guidance on technique and safety measures. His commitment to ensuring my well-being was unwavering, and his passion for the mountain and its history enriched the entire experience. His professionalism and dedication went above and beyond, making the ascent not only safe but also incredibly rewarding."
  • Overall: The overall experience of climbing Aconcagua with CTSS’s private custom program surpassed all of my expectations. The supporting staff and facilities on the mountain were top-notch, creating a supportive environment. The logistics implemented for safety were outstanding, providing an additional layer of reassurance. The breathtaking landscapes and challenging ascents made this expedition an unforgettable journey. I wholeheartedly recommend CTSS’s Aconcagua expedition. The meticulous organization, guide competency, and overall experience created a once-in-a-lifetime adventure that will be etched in my memory forever. If you are seeking a challenging yet rewarding mountaineering experience, look no further - this expedition is the epitome of excellence.

- Viranuj S, United States