The Running Of The Bulls Explained Travel Guide

What Is the San Fermin Encierro

The encierro is a free public event: anyone aged 18 or over who is sober may run, with no registration required. Six fighting bulls charge the course alongside six bell-oxen, which are calmer steers used to guide the bulls toward the ring. The total distance from the starting pen to the Plaza de Toros is 875 metres, and the run typically lasts between two and three minutes. Check the official Sanfermin.com guide for the most current timing and access details.

Four rockets mark the key moments of every run, and knowing what they mean keeps you safe. The first rocket signals the opening of the bull pens; the second confirms all six bulls have left the enclosure. The third rocket fires when the bulls enter the bullring, and the fourth signals that the course fencing can safely reopen to the public. Runners who lose track of the rockets can misjudge where the herd is — a serious mistake on a narrow street.

Between 1,500 and 3,000 people join each individual run, with the highest numbers on the opening and closing days. The atmosphere before the starting gun is part of the experience: runners gather at the foot of Calle de Santo Domingo and chant a prayer to San Fermín in Spanish and Basque. The chant — "A San Fermín pedimos, por ser nuestro patrón, nos guíe en el encierro dándonos su bendición" — is sung three times at 7:55 AM, five minutes before the rocket fires. Access gates along the course open between 06:30 and 07:30, so arriving early is essential if you want a good starting position.

The Running of the Bulls Course Guide

The course runs through the old quarter of Pamplona, covering four distinct street segments before the bullring entrance. Each segment has its own character, crowd density, and risk profile — so choosing where to stand or run matters enormously. Most first-timers are better served by studying the course on foot the day before rather than committing to a section they have never seen.

The route and its danger zones are well documented by Mybucketlistevents.com, which has guided participants for over a decade. Here is a breakdown of the four main sections runners should know before they take to the streets.

1. Calle de Santo Domingo — the opening climb
   • Start: the bull pens near the Arga river, heading uphill toward City Hall.
   • Risk: very high — bulls are fresh, fast, and the crowd is densest here.
   • Tip: experienced runners prefer this stretch; first-timers should avoid it.
2. Calle de Mercaderes — Dead Man's Curve
   • Length: the shortest segment, connecting Santo Domingo to Estafeta.
   • Risk: very high — bulls drift wide on the right turn, creating a dangerous crush point.
   • Local name: La Curva, where most serious goring injuries occur.
3. Calle de la Estafeta — the long straight
   • Length: the longest and straightest leg of the entire course.
   • Risk: moderate — bulls gain speed here and will easily outpace most runners.
   • Strategy: pull to the wall when the herd passes; do not try to sprint ahead.
4. Telefonica and Callejón — the bottleneck finish
   • Location: the final narrow corridor leading into the Plaza de Toros.
   • Risk: high — crowd and bulls funnel into a tight space simultaneously.
   • Advice: if you fall here, curl up, protect your head, and wait for the herd to pass.

The Suelto: When a Bull Separates from the Herd

The single most dangerous scenario in any encierro is the suelto — a bull that becomes separated from the main herd. A bull running with five companions follows the pack instinctively toward the ring. A bull running alone is disoriented, unpredictable, and far more likely to turn on runners. Serious gorings throughout the history of the encierro have disproportionately involved sueltos rather than the main herd moving as a unit.

Recognising a suelto situation in real time is difficult from street level. One signal is a long gap in the crowd ahead — the herd has passed but the noise suggests a bull is still loose behind you. Another is herders (pastores) shouting and waving from the sides of the course. If you hear those shouts after the main pack has gone by, do not assume the run is over. Stay pressed against the wall until you hear the third rocket confirming all bulls are in the ring.

The pastores who work the encierro spend months training alongside these specific bulls before July arrives. Their role is precisely to manage stragglers and prevent a suelto from prolonging its time on the street. Their shouts and arm gestures are directional commands — follow them if you can see the pastores from your position. This is practical knowledge that can make a genuine difference in an already chaotic two-minute window.

What to Wear and How to Prepare

The traditional dress for the encierro is white trousers, a white shirt, and a red neckerchief tied around the neck. This is not a formal requirement — but dressing in the tradition signals respect for the festival and helps you blend with the local crowd. Most runners also carry a rolled-up newspaper, which can be used to attract a bull's attention and guide it forward (a technique used by the more experienced runners at the front of the herd).

Shoes matter more than almost anything else. Wear trainers or running shoes with a solid grip — the cobblestones become slippery early in the morning, especially after street washing crews hose down the course between 06:00 and 06:30. Flip-flops, sandals, and high heels are banned outright. Running barefoot is also prohibited and would be genuinely dangerous on wet stone.

Physical preparation is less about fitness than about knowing your limits. The run itself lasts under three minutes, so aerobic capacity is not the constraint — composure under pressure is. Practice the fall technique before July: lie flat, face down, cover the back of your head with crossed arms, and stay still. Panicked runners who leap to their feet after falling cause many of the pile-up injuries at the Callejón. One calm response can protect you and everyone around you.

Rules and Safety Before You Run

The rules for participation are simple but enforced without leniency by local police. Runners must be at least 18 years old, completely sober, and wearing closed-toe shoes — flip-flops and sandals are prohibited. No electronics are allowed on the course, which means phones, cameras, GoPros, and selfie sticks must all be left behind. Touching the bulls is also forbidden, and anyone who breaks this rule is removed from the course immediately.

The risk of injury is real: between 50 and 100 people are hurt during each San Fermín festival, and in recent years up to 50 have required emergency medical care. Falling and being trampled by other runners is the most common cause of injury, especially at the Callejón bottleneck. Goring is rarer but more severe — fewer than ten people per year are gored, yet 12 of the 15 total fatalities recorded since 1910 were caused by bull horns. If you fall, the safest move is to curl up, cover your head with your arms, and stay down until the herd passes.

Medical support along the course is substantial: a physician and nurse are stationed at every 50 metres, and over 200 medical personnel are on duty each morning. More than 20 ambulances are positioned along the route to transport anyone who needs hospital care quickly. That infrastructure exists because the run is genuinely dangerous — it is not theatre. Non-residents should ensure their travel insurance covers emergency medical costs in Spain, as injured foreigners do receive immediate treatment but are subsequently billed for it.

Watching from the Balconies

Not everyone who comes to Pamplona for San Fermín wants to run — and watching from a balcony delivers nearly the same rush with a fraction of the risk. Private balconies on Calle de la Estafeta and Calle de Mercaderes offer elevated, close-up views of the bulls moving at full speed. Booking a balcony spot through an established events company is the easiest option; expect to pay anywhere from €150 to €400 per person depending on the date and position, with opening-day (July 7th) spots commanding the highest prices. These spots sell out weeks in advance, so planning ahead is non-negotiable for the prime viewing sections.

Street-level spectating is free, but positions behind the wooden fencing can be crowded and sight lines are often poor. Spectators at street level have also been caught in incidents when bulls broke through or charged the fence, so staying well behind the second line of barriers is essential. The inside of the bullring is a third option that many visitors overlook: runners who complete the course can remain in the arena after the bulls enter, and young heifers are then released for the crowd to interact with in an unscripted arena session. This final phase is livelier than most visitors expect and worth staying for even if you did not run the streets.

For those planning a broader Spanish festival itinerary, the encierro pairs well with Semana Santa processions in southern Spain or the fire and noise of Las Fallas in Valencia. Each of these events has a distinct regional character, and combining them into one trip reveals the full range of Spanish festival culture. Pamplona is most compelling when treated as one chapter in a wider journey rather than an isolated bucket-list stop.

Other Bull Runs Beyond Pamplona

Pamplona may be the most famous, but it is far from the only place in Spain where bull runs take place. The town of Cuéllar in Castilla y León claims an older bull-running tradition, with records going back to the 15th century — predating Pamplona's written accounts. In Navarra alone, dozens of towns including Tafalla, Tudela, and Sangüesa hold their own encierros during summer festivals. These smaller runs often attract locals far more than tourists, which gives them a rawer, less polished atmosphere.

The key difference between Pamplona and most provincial encierros is scale: smaller towns run shorter courses, use fewer bulls, and draw crowds of hundreds rather than thousands. Safety infrastructure is also less extensive outside Pamplona, where decades of international attention have driven investment in medical coverage and crowd management. For experienced runners who have already done Pamplona, a provincial encierro can feel more authentic — but the reduced safety net makes prior knowledge even more important. First-timers should always start in Pamplona, where the course is well-documented and medical response is the most developed in Spain.

Understanding how the tradition varies across Spain is part of planning a smart European festival trip rather than chasing only the headline event. The regional diversity of the encierro — from Pamplona's global spectacle to a quiet Navarran village's July morning — reflects how deeply embedded bull running is in northern Spanish culture. That depth is what makes the tradition genuinely worth understanding, not just watching.