There is a version of the last week of August in Ibiza that never makes it onto anybody's story. It starts at seven in the morning, it smells of neoprene and coffee from a beach kiosk, and the people taking part have numbers written on their shoulders in marker pen. This is the week the island's clubs — the swimming clubs, the kayak clubs, the running clubs — take over the calendar, and almost all of it is free to join or free to watch.
If you are on the island between 25 August and 1 September 2026 and you want something to do that isn't a sunbed or a queue, this is the week to look at. Below are the things worth setting an alarm for, plus what to do with the rest of the day once you have earned it.
The Sunday Swim: Travessia to the Cova de ses Llagostes
The single best thing happening in Ibiza this week starts in the water at Caló des Moro, Sant Antoni, at ten o'clock on Sunday 30 August. The XXVI Travessia a nado a la Cova de ses Llagostes is an open-water swim, now in its twenty-sixth year, that takes a field of swimmers out of the bay and along the coast to the cave of the lobsters — a sea cave in the rock that you cannot reach on foot and would struggle to find by boat.
Entry is free. What makes it special is that it is not a race in any serious sense. Yes, there are fast swimmers at the front. But the bulk of the field is islanders of every age in bright caps, moving at a companionable pace, with kayaks alongside and a crowd on the rocks shouting encouragement at people they went to school with. Late August water is at its warmest of the whole year, somewhere around 26°C, which is why the date has stayed put for a quarter of a century.
If you would rather watch than swim, the walk around the headland from Caló des Moro gives you the whole thing from above. Get there by 09:45, bring water, and expect the finish celebrations to run well past midday.
Saturday Morning, Twice Over
Saturday 29 August gives you two reasons to be up early, at opposite ends of the bay.
At nine, Club Nàutic Sant Antoni hosts the XXV Día de la Piragua — twenty-five years of the island's canoe and kayak day. It's free, it's designed for people who have never held a paddle, and boats are provided. Children paddle with instructors in the shallows while the club's regulars take longer boats out into the bay. It is, quietly, one of the most family-friendly mornings of the entire Ibiza summer, and it costs nothing.
Half an hour later and a twenty-minute drive east, O Beach Ibiza and Bam-Bu-Ku run their joint beach cleanup from Bam-Bu-Ku in Marina Botafoc, starting at 09:30. Free, gloves and bags supplied, and it usually wraps up before the heat arrives with a drink for everyone who turned out. Ibiza's beaches take a hammering in August and the volume of cigarette filters and bottle caps that comes off a single stretch of sand in ninety minutes is genuinely sobering. It's a good hour, and it is a rare chance to do something for the island rather than take from it.
Doing both in one morning is possible if you leave Sant Antoni by half nine, but honestly, pick one and do it properly.
Wednesday's €4 Trail Run
Ibiza's weekly group trail run goes on Wednesday 26 August at 09:00, and the whole thing costs four euros with no advance registration. The catch — and it is the charm of it — is that the meeting point moves every week, so you need to check the location before you set off rather than assuming last week's spot.
The pace is social, the routes wind through pine forest and along coastal paths, and all levels turn up. If you have been curious about running on the island but daunted by doing it alone in August heat, this is the low-commitment way in. Nine in the morning is late enough to be civilised and early enough to beat the worst of the sun.
Friday Night: Ribbons, Hoops and a Sea View
Something gentler on Friday 28 August. At eight in the evening, the Club de Gimnasia Rítmica Portmany holds its exhibition gala at Sa Punta des Molí in Sant Antoni — free, outdoors, and staged on one of the prettiest waterfront sites on the west coast, an old windmill and press complex looking out over the bay.
It is a display rather than a competition: the club's gymnasts, from the very small to the very good, showing what they have worked on all year in front of an audience largely made up of their own families. If you want a picture of how Ibiza actually lives outside the resorts, an hour here will tell you more than a week in San Antonio's West End.
When the Sport Stops: Free Music on the Sand
The island rewards you afterwards, and it doesn't charge.
Playa de s'Arenal hosts the Soul Train Festival on Saturday 29 August from 20:00, and Mockers Revolution on Sunday 30 August at the same time — both free, both on the beach, both the kind of thing you can wander into with sand still on your feet. Sant Agustí des Vedrà is deep into its fiestas all weekend, with free concerts running from Thursday through Saturday night in the village square.
And on Tuesday 1 September, the Festival Eivissa Jazz opens its 38th edition. It is free, it runs to 5 September, and the opening night puts Sinéad Cormican and Jive at Nine on at 21:00 beside the Vara de Rey statue in the middle of Ibiza Town. Thirty-eight years is longer than most of the island's famous nightlife institutions have existed.
If You're Here With Kids
Two things run daily through the whole week and both hold up. BIBO Park Ibiza is an inflatable assault course moored off the coast — slides, climbing walls, obstacle courses, life jackets included, sessions from €10 to €19. And the Cova de Can Marçà above Port de Sant Miquel drops 79 metres into the cliff on a 40-minute guided tour of chambers that smugglers used long before anyone sold a ticket. Nine to fifteen euros, and it is reliably fifteen degrees cooler underground than it is outside.
For a free option, keep an eye out for the open-air cinema evenings and the puppet workshop "El viaje de las emociones", which starts Monday 31 August and runs to 3 September.
Practical Notes
Sign-on for both the swim and the canoe day happens on the morning, at the venue, and you'll want to be there thirty to forty-five minutes before the listed start. Parking at Caló des Moro and around Club Nàutic Sant Antoni disappears early on a summer weekend, so consider the bus or get dropped off. Bring a towel, a hat and more water than you think you need — late August is still properly hot, and the sea is warm enough that it stops cooling you down.
Everything above is either free or under twenty euros. In the last week of August, on this island, that is worth saying out loud.
Full listings, dates and ticket links for everything happening in Ibiza this week are on ibiza-calendar.com.
