It was once the case that a bunch of apps were trying to tout themselves as “Airbnb for activities”—a pitch that may not be viable for much longer.

Airbnb has bought a Barcelona-based activity-booking company called Trip4Real for a figure that’s reportedly worth between €5 million ($5.6 million) and €10 million ($11.2 million).

Trip4Real lets people book activities in over 70 European cities (though most of those cities are in Spain), and is planning to expand into Latin America. Its website says it currently has around 10,000 users globally.

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The company started off in 2013, being partly funded by superstar chef Ferran Adrià and raising $1.4 million in a 2014 funding round led by Caixa Capital Risc and Kibo Ventures.

As Tech.eu notes, Trip4Real was already an Airbnb partner in its home city, offering discounts to Airbnb customers. (Perhaps ironically, Barcelona is one of the cities whose authorities are giving Airbnb the hardest time over its business.)

Airbnb has been playing around in the activities space for the last couple years, as it seeks to expand its platform’s remit beyond accommodation-booking.

CEO Brian Chesky said in March this year that he wanted customers to be able to create a “magical trip” with various add-on components. In August, the San Francisco firm started testing out an app called Trips that rivals the kind of service provided by the likes of TripAdvisor trip .

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With Trip4Real, it gets not only a bunch of interesting activities hosted by locals (exploring club culture in Berlin, wine tasting in Budapest, and so on) but a rather slick platform to support them.

The acquisition comes shortly after the announcement of a partnership deal between Yelp and activities platform Peek.