Gorilla trekking rules and etiquette exist for one reason above all: mountain gorillas share close to 98% of human DNA and can catch human respiratory illnesses. Every rule on this list traces back to protecting a endangered population, not just visitor experience.
Key Highlights
- Minimum distance from gorillas: 7 meters at all times
- No flash photography, loud noises, or sudden movements
- Visitors who are unwell should not trek, even with a booked permit
- Maximum group size: 8 visitors per family, for one hour
- No eating, drinking or littering in the gorillas’ presence
The Core Rules
Stay at least 7 meters back at all times, keep your voice low, and never use flash photography — it startles gorillas and disrupts natural behavior. No eating or drinking while with the family, and nothing gets left behind in the forest, including tissues or wrappers. These same core rules apply whichever sector you trek in, so there’s nothing extra to learn if your permit changes at the last minute — see our first-time trekking guide if you’re still deciding which sector to request.
Why Health Rules Matter Most
Because mountain gorillas are genetically close to humans, they’re vulnerable to our colds, flu and other respiratory illnesses in ways that can be fatal to them. If you’re feeling unwell — even mildly — on trekking day, tell your guide before setting out. Rangers will reschedule a sick visitor rather than risk the family’s health, and most operators build some flexibility into permit bookings for exactly this reason. Since the population only numbers just over a thousand individuals worldwide, a single introduced illness spreading through a habituated family carries real conservation consequences, not just a risk to that specific group.
Where These Rules Actually Come From
The 7-meter distance and other core rules were developed by conservation researchers and park authorities specifically to balance tourism revenue, which funds much of Uganda’s gorilla conservation work, against the real disease and stress risks of habituating wild animals to human presence at all. Some sectors and guides still recommend a surgical mask on the trek itself as an extra precaution, a practice that became more common and more strictly enforced during recent years and remains a sensible option even where it’s not formally required.
If a Gorilla Approaches You
It happens more often than visitors expect, particularly with curious juveniles. The rule is simple: stay still, avoid direct eye contact with a silverback, and let your guide manage the situation. Never approach a gorilla yourself, even if it’s moved closer than the required distance. Rangers are trained specifically for these moments and will calmly reposition the group if needed — it’s one of the reasons an experienced, licensed ranger accompanies every trek rather than a guide alone.
Rules That Apply Before You Even Reach the Trailhead
Etiquette starts earlier than most visitors realize. The morning briefing at the park headquarters covers these rules in full before anyone sets out, and rangers use this time to assess each group’s fitness and answer questions. Arriving on time for this briefing, ideally 15-20 minutes early, matters more than it might seem — groups that arrive late can delay the whole morning’s trekking schedule for other visitors as well as themselves. See our permit cost guide for what’s included in your booking beyond just the trek itself.
Photography Etiquette
Photos are welcome and expected, but flash is never permitted. Given Bwindi‘s low forest light, most experienced trekkers bring a camera capable of higher ISO performance rather than relying on flash — see our packing list for gear recommendations. Travelers wanting significantly more time to work a shot without the strict one-hour pressure sometimes book the gorilla habituation experience instead, which follows the same core rules but allows up to four hours in the forest.
Group Behavior
Groups are capped at 8 visitors per family specifically to limit stress on the gorillas. Follow your guide’s instructions on movement and positioning rather than jockeying for a better angle — rangers will ask you to move if you’re too close or too loud. This is also why the one hour with the gorillas is enforced so strictly rather than left to a ranger’s discretion on the day — a consistent, predictable limit is easier to build conservation policy and permit pricing around than a flexible one.
How These Rules Compare to Chimp Tracking
Travelers combining gorilla trekking with chimpanzee tracking in Kibale often ask whether the same rules apply. The core principles are similar, distance, no flash, no trekking while unwell, but chimps are considerably more mobile and vocal than gorillas, so a chimp tracking permit often involves more walking and a livelier, noisier encounter than the comparatively calm hour typical of a gorilla family.
Frequently Asked Questions
What happens if I break a rule during the trek?
Your ranger will correct you immediately — most breaches are minor and unintentional, like stepping too close for a photo, and are simply addressed on the spot.
Can I still trek if I have a mild cold?
You should disclose this to your guide before trekking. Depending on severity, you may be asked to skip the trek to protect the gorillas, with rescheduling options discussed with your operator.
Is it true gorillas sometimes touch visitors?
Rare but possible, usually from curious juveniles. Visitors are instructed to stay passive and let the ranger manage the encounter.
Plan Your Gorilla Trek
We brief every traveler on these rules before trekking day, so you’ll arrive knowing exactly what to expect. Tell us your travel dates to get started.