From Barcelona · 41.39° N · 2.17° E
Seven getaways from Barcelona for the revetlla on the 23rd and Sant Joan's day: Pyrenean falles, the coast's first swim and rivers still full of water.
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On the night of the 23rd Andorra la Vella receives the Flama del Canigó and the fallaires bring the falles down through the centre; Escaldes, where the hotel is, lights its own. Tristaina opens at the end of June and there may be snow up high.

The historic Lakes Train runs on Saturdays until the end of June, before summer swaps it for the panoramic one. Go up to Lleida on an early train from Sants; Collegats rafting starts in July, so Sunday is for the via ferrata.

In June the Vero still runs with spring water and guided canyoning is in season. The 24th is a working day in Aragon, so the walkways have fewer people; go in first thing, before the heat.

From May to August the balloon goes up daily at dawn over the Baix Empordà, and in June the light arrives before seven. The short nights leave time to dine out in Peratallada and Pals beach is a quarter of an hour away.

On the night of the 23rd Les burns the Haro, a fir trunk some twelve metres tall, in the village square: it is one of the UNESCO Pyrenean fire festivals. In the morning, rafting on the Garonne, which at the end of spring runs with more water.

If you stay in the city, the sailing boat on the 24th sails with the beach empty after the revetlla. In June the sun sets after nine, so the departure is late and dinner at Can Solé is booked very late.

At the end of June the water is already bearable and the beach is not yet the August one. The R2 Sud saves you the C-32 on the morning of the 24th; the Sitges museums are closed on Mondays and the Maricel on Tuesdays.
Questions
In Andorra la Vella and Escaldes-Engordany, with the Flama del Canigó and the falles coming down through the centre, and in Les, in Aran, where the Haro is burned in the square. They are three and four hours away by car.
Yes. At the end of June the water is already warm and the beaches of Sitges and Garraf do not yet have the July and August crowds. Go on the R2 Sud so you do not have to look for parking.
Accommodation in Andorra and Aran, which fills for the revetlla. Then the Empordà balloon, the Alquézar walkways and the Lakes Train.
There may be some on the peaks and the highest lakes, especially after a winter of heavy snow. The Tristaina ones are considered open from late June to late September.
Geocaliahttps://www.geocalia.com/en/spain/catalonia/barcelona/getaways/sant-joan-long-weekend