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Marissa and a fellow adventurer walking beneath snow-covered Himalayan peaks in Nepal

Adventure. Athletics. Growth.

Go whereyou feelalive.

Big mountains. Real challenge.
The kind of memories you feel forever.

Explore the expeditions

From our adventuresON THE TRAIL IN NEPAL

Nepal   /   Tanzania   /   IcelandExpeditions by Marissa Klouwer

Big mountains.
Bigger memories.

The climbs that make you proud. The views that stop you mid-sentence. The people you end up laughing with halfway up a mountain.

Adrenaline Retreats brings together adventure, physical challenge and the joy of going somewhere extraordinary. Come for the experience. Take the feeling home.

Real adventureShared experience

Upcoming expeditions

Make the climb yours.

2026 / 2027

The Adrenaline Retreats group together at Everest Base CampNEPAL

1–9 December 2026   ·   8-day expedition

EBC Fast Track

Everest Base Camp, with a faster, focused approach. Himalayan trails, spectacular views and the absolute thrill of making the climb yours.

Ask about EBC
Marissa and the expedition group celebrating at Kibo Hut on KilimanjaroTANZANIA

1–8 March 2027   ·   Africa’s highest peak

Kilimanjaro

5,895 metres. One hell of a view. Join us for a mountain adventure full of challenge, laughter and a summit you will never forget.

Ask about Kilimanjaro

Iceland

COMING IN 2027

Wild landscapes. Huge waterfalls. An adventure worth getting excited about. Message us for the upcoming details.

Ask about Iceland
Marissa standing on a rocky viewpoint above green hills
Marissa Klouwer · Founder, Adrenaline Retreats

Meet the founder

Adventure
is in her
nature.

A founder, former professional dancer and lifelong adventurer, Marissa has travelled to more than 70 countries. Adrenaline Retreats is where her love of wild places, physical challenge and bringing people together comes alive.

There is room for the effort, the awe and the laughter. Especially the laughter.

Meet Marissa
70+countries explored.
Still curious.

Before you say yes

A few
good questions.

How do I book an expedition?

Message @adrenalineretreats on Instagram with EBC, KILI or ICELAND. We’ll share the itinerary, current availability, price and booking details for your chosen expedition.

Which expedition is right for me?

Tell us what excites you, your experience and the kind of challenge you are looking for. Start with a conversation about the trip and its demands before choosing your expedition.

How should I prepare?

Preparation depends on the expedition, your experience and the altitude involved. Ask for the trip’s specific preparation requirements before booking, especially for EBC Fast Track.

Where can I see more of the experience?

Follow @adrenalineretreats on Instagram for footage from our adventures, group moments and upcoming expedition announcements.

Your next adventure starts here

See you
at the top.

Feeling the pull? Send us EBC, KILI or ICELAND. We’ll share the details and help you take the next step.

Message us on Instagram
@adrenalineretreats