San Juan de Gaztelugatxe Tours from Bilbao and San Sebastian

From Bilbao

Full coach days add Bermeo, Mundaka, Gernika and often a txakoli winery to the islet walk. The cheapest is Gaztelugatxe with Access, Bermeo and Gernika from Bilbao at $33 for 6 hours, with 2 hours of free time on the islet and the access booking carried in the price. The most-booked is Gaztelugatxe, Bermeo, Mundaka and Gernika Day with Txakoli at $55 for 10 hours, rated 4.7 from 3,393 reviews. Gaztelugatxe, Mundaka and Gernika Tour from Bilbao costs $77 for 6 hours with a 2-hour guided walk on the islet, and Gaztelugatxe Walking Day with Bermeo and Gernika costs $78 for 9 hours.

Note what Bizkaia Bridge, Gaztelugatxe, Bermeo and Gernika Tour does not do: at $68.11 for 5 hours it shows Gaztelugatxe from the viewpoint only, and the walk down to the hermitage is not included.

Half days trade the extra towns for more time per person. Gaztelugatxe and Basque Coast Walk from Bilbao is a 3.5-hour hike with up to 8 people and the entrance in the price. Gaztelugatxe Small-Group Visit with Access Included takes up to 4 people for about 2 hours 20 minutes on the islet at $72. Basque Coast and Gaztelugatxe Small-Group Tour costs $78 for 4 hours but its listing does not state islet access, so ask the operator or book your own free slot. Gaztelugatxe Hike, Bermeo Port and Pintxo Lunch adds a pintxo lunch at $153.25 for 4-5 hours, and Gaztelugatxe and Cape Matxitxako Tour from Bilbao spends 2.5 hours on the islet and 1.5 hours at the lighthouse for $80.

From San Sebastian

Two tours run from San Sebastian. Gaztelugatxe and Gernika Tour from San Sebastian is an 8-hour bilingual day at $147.58 with a guided walk across to the hermitage and all ticket fees, and it needs a minimum of 4 adults per booking. Bilbao, Guggenheim and Gaztelugatxe from San Sebastian runs 9 hours at $106, adds Bilbao old town and the Guggenheim on some options, and treats the climb to the hermitage as optional.

A third option starts in Bilbao and goes the other way. Gaztelugatxe and San Sebastian Day Trip from Bilbao costs $106 for 10 hours, with about 1 hour 45 minutes walking to the hermitage in the morning, a guided San Sebastian walk and free time before returning to Bilbao.

Private Days

Private tours price per person and take your party only. Private Biscay Coast Day with Gaztelugatxe costs $99.90 for 8-10 hours with hotel pickup in Biscay, and you choose on the day between the full walk to the hermitage or the viewpoints. It is rated 5 from 162 reviews.

Private Gaztelugatxe and Txakoli Winery Day costs $251 per person for 7 hours, for up to 7 people. It carries the full walk to the hermitage, lunch with pintxos, a winery visit and a tasting of 3 txakoli wines with local appetizers. Its listing does not state whether the access booking is included, so confirm with the operator or reserve your own free slot.

Which Days Need a Booking

The Bizkaia provincial council publishes the access calendar as a yearly PDF, and bookings open only for the current year. On controlled days you reserve a free online ticket. On the rest, the booking site shows a banner saying free access needs no ticket.

The table below follows that calendar.

Booking Rules

Tickets are booked on the official Gaztelugatxe Tiketa site. An individual request holds up to 10 tickets. Parties of 11 to 34 use the group process with a named responsible person.

Tour operators book on their own dedicated platform, up to 60 tickets per request. Entry is only in your slot, and a booking lapses 60 minutes after its stated time. A no-show blocks new reservations for one year.

Cancel from the link in the confirmation email if plans change, and show the ticket printed or on a phone at the access-control point. The daily limit is 1,462 visitors, so summer slots go early.

Tours That Book It for You

Some tours carry the islet access booking in the price, others do not say, and one does not walk down at all. These include the access booking: Gaztelugatxe, Bermeo, Mundaka and Gernika Day with Txakoli, Gaztelugatxe, Mundaka and Gernika Tour from Bilbao, Gaztelugatxe with Access, Bermeo and Gernika from Bilbao, Gaztelugatxe Walking Day with Bermeo and Gernika, Gaztelugatxe and Basque Coast Walk from Bilbao, Gaztelugatxe Small-Group Visit with Access Included, Bilbao, Guggenheim and Gaztelugatxe from San Sebastian, Gaztelugatxe and Gernika Tour from San Sebastian and Gaztelugatxe and San Sebastian Day Trip from Bilbao.

On Basque Coast and Gaztelugatxe Small-Group Tour, Gaztelugatxe Hike, Bermeo Port and Pintxo Lunch, Gaztelugatxe and Cape Matxitxako Tour from Bilbao, Private Biscay Coast Day with Gaztelugatxe and Private Gaztelugatxe and Txakoli Winery Day the listings do not state it, so ask the operator or book your own free slot. On Bizkaia Bridge, Gaztelugatxe, Bermeo and Gernika Tour the walk to the hermitage is not included, so it sees the islet from the viewpoint.

Two Routes Down and Up

Cars can no longer drive down to the stone bridge, so everyone walks the hillside from car parks beside the old road. The council marks two routes with different figures for length and gradient, The way in is the Urizarreta route and the way back is the Ermu route.

The Bridge, the Steps and the Bell

The islet joins the coast by a stone bridge, then a staircase of 241 steps climbs to the hermitage. At the top, visitors ring the bell on the front wall of the church three times for good luck and to chase away evil spirits. Legend says St John the Baptist took three strides from Bermeo to the islet, and a footprint inscribed San Juan on the last step is said to bring luck to those who step in it.

Who Should Not Do the Walk

The council does not recommend the walk for people with heart problems, breathing problems or reduced mobility, nor for visitors with strollers. The lookout on the Ermu route gives the view without the descent. If that is you, two tours fit: Bizkaia Bridge, Gaztelugatxe, Bermeo and Gernika Tour states the walk to the hermitage is not included and shows Gaztelugatxe from above, and Private Biscay Coast Day with Gaztelugatxe lets you choose the full walk or the viewpoints on the day.

Time on the Islet by Tour

Tours give very different amounts of time on the islet, which matters more than the total trip length. The council figure for an unhurried visit is about two and a half hours.

Clothes and Shoes

The Urizarreta entry route drops 1,200 m of path at a 35% gradient, and the climb to the hermitage adds the 241 steps. The province advises comfortable clothing and footwear, water, and sun cream in summer and on sunny days.

Operators repeat the same advice with a rain layer added. Gaztelugatxe Hike, Bermeo Port and Pintxo Lunch asks for walking shoes and loose clothing, and Bilbao, Guggenheim and Gaztelugatxe from San Sebastian suggests sport shoes and a spare t-shirt. Turismo Euskadi sums the place up as steps, rocks, sea and wind, so a light layer helps in any month.

With Kids and Strollers

The province does not recommend the walk for people with strollers, because of the gradient, the steps and the uneven ground. The route is also not recommended for anyone with heart or breathing problems or reduced mobility, and people with reduced mobility can instead enjoy the view from the lookout on the Ermu route.

Facilities are basic. There are only two sets of toilets, next to the Urizarreta attention point and at the Ermu control point. Picnic tables sit along the Ermu route if you bring food. The site is a cardioprotected space, with a first-aid kit and defibrillator at the attention points from 10:00 to 19:00.

With a Dog

Dogs are welcome on a leash at all times, and loose dogs are prohibited on the whole site. Stay on the marked paths with your dog. The same rules ban drones, fires, camping and diving in the surrounding waters.

By Bus on Your Own

From September to June there is no direct bus from Bilbao. Take Bizkaibus A3518 to Bakio or A3527 to Bermeo, then the A3524 van-taxi. The van-taxi takes cash only and no BARIK card, holds a maximum of 8 people and runs on workdays only.

Call Bizkaibus on 946 125 555 for timetables. Another option is the Euskotren line E4 from Bilbao Matiko to Bermeo, then a bus from there.

By Car and Parking

From Bilbao drive the BI-631 toward the Loiu airport, pass Mungia without entering, then the BI-2101 toward Bakio, about 45 minutes. The access road to the site is the BI-3101. Parking is tight: 22 spaces at Urizarreta and 57 at Lurgorri, and the car parks are often full from 10:00 to 16:00.

A height barrier limits clearance to 2 m, so motorhomes cannot enter. The province suggests parking in Bakio or Bermeo instead. From Bakio it is about 2 km on foot to the Urizarreta entrance.

Tour or On Your Own Side by Side

The table compares going by bus on your own with three tours: the cheapest full coast day, the short half-day hike and a private day. Tour prices are per person as listed.

Months With and Without a Booking

Access is free, but on controlled-access days you must reserve a free timed ticket online before you go. July and August are controlled every single day, and so is the stretch from 15 June to 20 September. Most spring and autumn weekends are controlled too, plus Easter and holidays.

On all other days access is free with no reservation or ticket. The Bizkaia provincial council publishes the calendar as a yearly PDF, and bookings are only accepted for the current year, so check it once your dates are known.

Feast Days and Busy Hours

The province reserves five dates for local celebrations and recommends tourists avoid them: 24 June, 31 July, 29 August, 31 August and 30 December. The romeria of San Juan on 24 June is the busiest pilgrimage day of the year. Bermeo tourism lists Mass at the hermitage on 24 June, 31 July, 29 August and 30 December.

Midday is the busiest stretch of any day, especially in summer and on holidays. Go in the morning or late afternoon and you share the 241 steps with far fewer people.

Weather and Orange Alerts

On orange-alert days the province recommends not climbing to the hermitage during the affected hours, and asks visitors to check the forecast on Euskalmet. If bad weather changes your plans, cancel your booking online and reserve another day.

The walking path is open all year, so the climb never closes for the season. Staff at the attention points work from 10:00 to 19:00, with a first-aid kit and a defibrillator on site.

Dragonstone in Game of Thrones

The islet played Dragonstone in Game of Thrones, the seat of Daenerys Targaryen. The show replaced the hermitage with a large castle built on the rock. Fans of the series often look for a San Juan de Gaztelugatxe tour for this reason, and several of the listed tours name the filming connection.

Turismo Euskadi lists the islet among the Basque filming locations of the series. In real life the rock carries the small hermitage, the stone bridge and the 241 steps.

A Hermitage Rebuilt Many Times

The first building on the rock is thought to date from the 9th century. It became a convent in the 12th century. In 1334 Alfonso XI of Castile besieged the rock for more than a month. The hermitage standing today is a reconstruction: it was burned in 1978 and the major rebuild was completed in 1983.

The traditions live on. A statue of the Virgin was placed under the sea near the islet in 1963. Bermeo fishing boats make several turns to port and starboard around the islet for luck, including when a new boat is launched. In the chapel, pilgrims leave ship models, paintings and photos. At the top you can ring the bell three times for good luck.

A Protected Coast

Gaztelugatxe was declared a protected biotope in 1998, joined Natura 2000 in 2013 and was renamed a Natural Monument in 2023. The nearby Akatx islet is a seabird sanctuary, home to the European storm petrel, the European shag and the peregrine falcon. The wider Urdaibai estuary became a UNESCO Biosphere Reserve in 1984.

To the north, Cape Matxitxako carries two lighthouses, from 1852 and 1909. The Gaztelugatxe and Cape Matxitxako Tour from Bilbao spends 1.5 hours at the cape after 2.5 hours on the islet.

Feast Days to Avoid

The Bizkaia provincial council reserves five days each year for local celebrations and recommends tourists avoid them: 24 June, 31 July, 29 August, 31 August and 30 December. Masses are held at the hermitage on several of them, and 24 June is the busiest pilgrimage day. Pick any other date for your Gaztelugatxe day trip.