International adventurers' society · Est. 2018

Explore further, together.

Gacor is a worldwide community of explorers, expedition leaders, and adventurers — headquartered in the United Kingdom, with our second basecamp in Indonesia.

Trusted by 1,300+ members worldwide
2018
Active since
1,300+
Members worldwide
Indonesia
Home basecamp
Who we are

A society built by adventurers, for adventurers.

Founded in 2018 at Gunung Kawi in East Java, Indonesia, Gacor Adventurers' Society brings together explorers of every discipline — mountaineers, divers, cavers, cyclists, and long-distance trekkers. What began as a small circle of friends chasing summits has grown into a structured, safety-first organisation with a membership that now spans the globe.

Our second basecamp in Indonesia anchors our presence in South-East Asia, giving members access to some of the planet's most extraordinary terrain — from the volcanoes of Java to the reefs of Raja Ampat. Every programme we run is led by certified expedition leaders and grounded in decades of collective field experience.

🏔️ Mountaineering 🌊 Marine & diving 🌴 Jungle expeditions 🚴 Endurance travel 🧭 Navigation training
Gacor team raising the GACOR.ORG.UK flag at Gunung Kawi, East Java, Indonesia at sunrise 🇬🇧 London HQ · 🇮🇩 Gunung Kawi basecamp
What we do

Programmes & expeditions

Four pillars that turn curiosity into capability — whether you are taking your first steps or leading your tenth summit.

Expeditions

Guided international and regional expeditions — mountains, jungles, caves, and coastlines — with full logistics and certified leaders.

Training & safety

Navigation, wilderness first aid, rope work, and risk management courses that build real, transferable field skills.

Community & chapters

Local chapters, meet-ups, and a global network so members can find teammates, mentors, and their next adventure.

Conservation

Leave-no-trace expeditions and partnerships that protect the wild places we explore for the next generation.

Where to find us

Global presence, two basecamps

Our headquarters in the United Kingdom and our second basecamp in Indonesia anchor a worldwide network of over 1,300 members.

Headquarters

United Kingdom

Gacor Adventurers' Society
128 City Road, London, EC1V 2NX, United Kingdom
Email: hello@gacor.org.uk
Second basecamp

Indonesia

Gacor Indonesia Basecamp
Gunung Kawi, Malang, East Java, Indonesia
Email: indonesia@gacor.org.uk
Basecamp Gacor.org.uk at Gunung Kawi, Malang, East Java, Indonesia📍 Basecamp Gacor.org.uk — Gunung Kawi, Malang
Expertise you can trust

Led by experienced explorers

Our leadership holds recognised mountaineering, diving, and wilderness-safety certifications — and thousands of field hours between them.

Tom Anderson

Founder & President

IML-certified · 20+ yrs field experience

James Whitmore

Head of Expeditions

Mountain Leader (ML) · Everest & Kilimanjaro

Budi Santoso

Indonesia Basecamp Lead

PADI Divemaster · Volcano specialist

Sarah Bennett

Head of Safety

Wilderness First Responder · WFR instructor

Gacor expedition team trekking through the Kalimantan rainforest toward a waterfall, past a nature-conservation sign ✔ Safety-first, always
Trust & transparency

Why members trust Gacor

Registered organisation. Registered in the UK, no. 14912731.

Certified leaders. Every expedition is led by qualified, insured professionals.

Documented safety. Risk assessments and emergency protocols for every departure.

Transparent pricing. Clear costs, no hidden fees, itemised before you commit.

Insured expeditions. Appropriate cover in place for field programmes.

Real community. 1,300+ members worldwide and a public record of past expeditions.

Companies House certificate of incorporation for GACOR.ORG.UK Adventure Community Ltd, company number 14912731
Officially registered. GACOR.ORG.UK Adventure Community Ltd — UK company no. 14912731, incorporated 2 May 2023. View certificate →
What they say

Member testimonials

Stories from adventurers who have joined Gacor. (sample — replace with real testimonials)

★★★★★

"My first Gunung Kawi expedition with Gacor was flawless — clear safety briefing, experienced guides. First time on a mountain and I felt safe throughout."

RP
Rizky PratamaMember · Malang
★★★★★

"A genuinely supportive community — from beginners to seasoned climbers, everyone's welcome. The Gunung Kawi basecamp feels like a second home."

DA
Dinda AyuMember · Surabaya
★★★★★

"Professional and safe. Serious safety standards, complete gear. Highly recommended for anyone starting their adventures the right way."

AH
Arif HidayatMember · Jakarta
Answers

Frequently asked questions

Everything you need to know before you join your first Gacor expedition.

What is Gacor?
Gacor is an international adventurers' society headquartered in the United Kingdom. We organise expeditions, train explorers, and connect a worldwide community of adventurers — with our second basecamp in Indonesia.
Where is Gacor based?
Our headquarters is in the United Kingdom, with a second operational basecamp in Indonesia and a worldwide membership.
Who can join Gacor?
Membership is open to adventurers of every level — from first-time hikers to veteran expedition leaders. You complete a short profile and, for field expeditions, a safety briefing.
Does Gacor run expeditions in Indonesia?
Yes. Our Indonesia basecamp coordinates regional expeditions across the archipelago — mountain, jungle, and marine programmes — alongside our UK-led international expeditions.
Are Gacor expeditions safe?
Every expedition follows a documented safety framework: certified leaders, risk assessments, emergency protocols, and appropriate insurance. Standards are reviewed before each departure.
How much does membership cost?
Community membership is Rp 10,000 / year. Field expeditions are priced individually by destination, duration, and logistics. Full pricing is shared on application.

Ready for your next adventure?

Join a global community of explorers. Tell us a little about yourself and our team will be in touch about membership and upcoming expeditions.

Contact

Prefer to reach us directly?

UK HQ: hello@gacor.org.uk

Indonesia: indonesia@gacor.org.uk

Chat with us