Things to Do in Irun — Basque Country: Top Attractions, Tours & Tickets

#1Museo Romano OiassoMustVentas de Irun–Urdanibia4.3(989)

This is Irun’s clearest historical anchor, using the Roman-era Oiasso story to give context to a town that can otherwise feel primarily modern and functional. Start here before walking the center, especially if you want the rest of the borderland landscape to make more sense.

1.3h Walk upGo near opening for a quiet, unhurried visit.

Pairs with: Ama Xantalen Baselizako Museoa · Parish of Santa María del Juncal · Irun City Hall

#2Parque Ecológico de PlaiaundiMustCentro–Colón4.5(558)

Plaiaundi is the best reason to slow down in Irun: a wetlands walk at the meeting point of river, estuary, and migration routes. It works especially well as a low-key counterweight to the town’s historical stops, rather than as a destination requiring a whole day.

1.5h FreeVisit in the morning or late afternoon, when bird activity and light are generally better.

Pairs with: Pheasant Island · Museo Romano Oiasso · Hondarribia Old Town

#3Parish of Santa María del JuncalMustVentas de Irun–Urdanibia4.5(459)

This is the principal church to include on a central Irun walk and one of the town’s most characterful historic interiors. Use it as a brief stop between the Roman museum and the civic center rather than making a special journey solely for it.

25m FreeTry outside service times for the best chance of a calm look inside.

Pairs with: Museo Romano Oiasso · Irun City Hall · Arbelaitz jauregia

#4Ermita de San MarcialMustMeaka–Ibarla4.6(178)

The hermitage is one of Irun’s essential local symbols and is closely tied to the annual Alarde de San Marcial celebrations on 30 June. Even outside festival time, come for the hilltop pause and wider sense of the town’s setting rather than for a lengthy interior visit.

35m FreeGo on a clear morning or near sunset for the best atmosphere; expect exceptional crowds around 30 June.

Pairs with: Castle of Gazteluzar · Irugurutzeta Mining Reserve · Jaizkibel

#5Irugurutzeta Mining Reserve (Tourist attraction)MustMeaka–Ibarla

The mining reserve offers a more industrial, working-landscape side of Irun than the central monuments do. It is best for walkers and curious visitors willing to trade polished displays for an atmospheric outdoor heritage route.

2h Book aheadChoose a dry morning and wear footwear suitable for uneven ground.

Book ahead if you want a guided or interior-access visit; the outdoor route is the easier spontaneous option.

Pairs with: Ermita de San Marcial · Castle of Gazteluzar · Jaizkibel

#6Hondarribia Old TownMust

Hondarribia’s walled old town is the most compelling nearby complement to Irun, with lanes and defensive architecture that make the border region feel immediately tangible. Give it a wandering visit rather than trying to tick off individual buildings, then combine it with the riverside and Plaiaundi.

2h FreeArrive in the morning before day-trippers and lunch crowds fill the lanes.

Pairs with: Parque Ecológico de Plaiaundi · Pheasant Island · Santuario de Guadalupe

#7Pheasant IslandShouldArtia–Dunboa4.4(284)

This tiny river island is an unusually evocative Franco-Spanish border landmark, best appreciated from the banks rather than approached as a conventional island excursion. Pair a look toward it with Plaiaundi or a walk along the Bidasoa, and do not build an itinerary around landing there.

15m FreeLate afternoon gives the riverside walk a more relaxed feel.

Pairs with: Parque Ecológico de Plaiaundi · Hondarribia Old Town · Museo Romano Oiasso

#8Ama Xantalen Baselizako MuseoaShouldVentas de Irun–Urdanibia4.4(60)

This small museum-basilica stop deepens the Roman and early-history thread introduced at Museo Romano Oiasso. It is most rewarding for archaeology-minded visitors; others can keep it brief and use it as an add-on rather than a substitute for Oiasso.

35m Walk upCheck opening hours before setting out, as small heritage sites may have limited access.

Pairs with: Museo Romano Oiasso · Parish of Santa María del Juncal · Irun City Hall

#9Aquarium San SebastiánShould4.4(16,000)

This is a strong rainy-day or family-friendly San Sebastián side trip, with enough substance to justify the train or drive from Irun. It should not displace Irun’s Roman and borderland sights if your time in town is short.

1.7h Timed entryBook an opening-time slot on weekends and in summer.

Reserve online for weekends, holidays, or school-break dates to avoid the busiest entry periods.

Pairs with: Beach of La Concha · Zurriola beach · Hondarribia Old Town

#10Beach of La ConchaShould4.7(24,000)

La Concha is the classic San Sebastián waterfront experience and makes an excellent half-day extension from Irun if you are also visiting the aquarium. Walk the bay rather than treating it only as a beach stop; in cooler weather, the promenade is the main draw.

1.5h FreeGo early in the morning for a quieter promenade, or near dusk for the atmosphere.

Pairs with: Aquarium San Sebastián · Zurriola beach

#11Santuario de GuadalupeShould

The Guadalupe sanctuary is a worthwhile scenic and devotional stop above Hondarribia, especially for travelers already exploring the old town and surrounding hills. It is more about the setting and regional identity than a long interior inspection.

35m FreeA clear morning provides the most rewarding views and quieter roads.

Pairs with: Hondarribia Old Town · Jaizkibel · Ermita de San Marcial

#12JaizkibelShould

Jaizkibel is the nearby coastal high ground to choose when you want a landscape break from Irun’s museums and town streets. It rewards a short scenic outing or hike, particularly when combined with Hondarribia and the Guadalupe sanctuary.

2h FreeGo on a clear day and avoid committing to exposed routes in poor weather.

Pairs with: Santuario de Guadalupe · Hondarribia Old Town · Ermita de San Marcial

#13Irun City HallIf timeVentas de Irun–Urdanibia4.3(306)

The City Hall is a useful civic landmark on a self-guided stroll through central Irun, not a major standalone sightseeing stop. See its exterior while linking the Juncal church, the Roman museum, and nearby old buildings.

10m Free

Pairs with: Parish of Santa María del Juncal · Museo Romano Oiasso · Arbelaitz jauregia

#14Castle of GazteluzarIf timeArtia–Dunboa4.3(132)

Gazteluzar is for visitors who enjoy locating traces of the area’s defensive past in the landscape rather than expecting a furnished castle visit. Treat it as a short outdoor detour or walk destination, with the setting more rewarding than the ruins themselves.

40m FreeGo in dry daylight, when the approach and views are more enjoyable.

Pairs with: Ermita de San Marcial · Irugurutzeta Mining Reserve · Jaizkibel

#15Arbelaitz jauregiaIf timeVentas de Irun–Urdanibia

Arbelaitz Palace is a worthwhile exterior stop for people assembling Irun’s scattered historic fabric, though it is not an attraction that merits a long dedicated visit. Fold it into a central walk with the Juncal church and City Hall.

10m Free

Pairs with: Parish of Santa María del Juncal · Irun City Hall · Museo Romano Oiasso

#16Zurriola beachIf time4.6(10,000)

Zurriola has a more active, surf-oriented character than La Concha and is useful if you want to see a different side of San Sebastián’s shoreline. Choose it over La Concha mainly for beach time, surf watching, or a livelier evening walk.

1.3h FreeMorning is calmer; later afternoon is better for its more energetic beach scene.

Pairs with: Beach of La Concha · Aquarium San Sebastián