Trekking Mount Rinjani: the altitude clause, and the island problem

The Regency Assurance hazardous activity definition specifically excludes high-altitude trekking over 2,500 metres, alongside mountaineering, caving, off-piste winter sports and polar expeditions.

Rinjani's summit is 3,726 metres. Even the crater rim camps that many two-day itineraries stop at sit well above 2,500m, so a trek that never reaches the summit can still be over the line — which is the part people get wrong when they assume the shorter option is the safer one contractually.

As with Kinabalu, the exclusion is written against altitude and not against difficulty. Rinjani is harder than Kinabalu by most accounts, but that is not what the clause measures.

Rinjani is not a dormant peak. Indonesia "regularly experiences natural disasters such as severe weather, floods, landslides, volcanic eruptions, earthquakes and tsunamis", and Rinjani's activity has closed the trek before.

There is a timely wrinkle. On 18 September 2026 the FCDO stopped advising against all travel to volcanoes in Indonesia, pointing instead at the local authorities who enforce exclusion zones at individual sites. That removes one obstacle — travelling against FCDO advice — but it does not remove the altitude exclusion, and it does not make an exclusion zone crossable.

Those are two separate gates, and a trek can pass one and fail the other.

Source: FCDO — Indonesia travel advice, extreme weather and natural disasters

The practical geography matters more on Rinjani than the paperwork suggests.

Evacuation from the crater rim is a stretcher-and-porters operation before it is anything else. Lombok's hospitals cluster around Mataram on the west coast, and for anything complex the pathway continues off the island — to Bali, and from Bali offshore.

So even where cover exists, the clause that matters is not the outpatient limit. It is whether evacuation includes domestic inter-island transfer as well as international evacuation. Those are frequently not the same thing.

To be clear about scope: we are an insurance introducer for international health and life cover, and we cannot sell you a policy that covers a trek our own wording excludes. Saying so is the useful thing we can do here.

Specialist altitude and expedition cover is a different market with different underwriters. Pre-existing conditions are excluded and cover is governed by the Regency Assurance policy wording.