13:00
Live Jam — Open Air
Participatory live music in the sun. The day starts loose, warm, and open.
← Boyos WonderlandSummer
Summer
Jam
A mini festival
- Saturday 25 July 2026
- 13:00 – 23:00 + after till late
- Houtbaar, Haarlem
- Open air + indoor after
Follow for updatesTickets announced soon
The concept
The Day
Summer Jam doesn't start with a headline. It starts with a live jam in the sun: open, participatory, warm. People finding the rhythm together before a single DJ has touched the decks.
From there the energy builds. Live music gives way to DJ sets. The dancefloor opens gradually as afternoon moves toward evening.
When the garden closes at 23:00, the night doesn't stop. The party continues indoors till late: a natural extension of a day that has been building since the first note.
No big headline, no manufactured hype. Just a full day that earns its dancefloor.
↓
DJ Sets — Garden Stage
Live energy transitions into DJ sets. The groove deepens as afternoon shifts into evening.
23:00
Indoor Afterparty — Till Late
The garden closes, the night continues. The same energy moves indoors and keeps going.
Together with
The Partners
01
Boyos Wonderland
The event world around Boyos Collective: music, food, art, tattoos, and a dancefloor with room for everyone.
Visit02
INI Movement
A creative movement bringing live music and open participation into the day.
Visit03
Houtbaar
The Haarlem home base for the open-air part of the day and the indoor continuation after 23:00.
VisitProgram
Line-up
Line-up announced soon
Artists and timings will be shared when the full shape of the day is ready.
Practical info
Good To Know
Saturday 25 July 2026
Summer in Haarlem, starting early afternoon.
13:00 – 23:00 + after till late
The garden closes at 23:00, then the night moves inside.
Houtbaar, Haarlem
Woudplein 2, 2031CZ Haarlem
Come for the live jam, stay for the room opening up.
Tickets announced soon. Until then, updates will land through the Boyos Wonderland channels.
