Day
Garden Open
Jams, DJ sets and people arriving into the same warm garden rhythm, with SYNGA hosting the open jams and Estafête through the day.
← Boyos WonderlandSummer
Summer
Jam
A mini festival
- Saturday 25 July 2026
- 13:00 – 23:00 + afterparty till 02:00
- Houtbaar, Haarlem
- Open air + indoor after
How it moves
From 13:00 To 02:00
Summer Jam is where Boyos Wonderland and INI Movement meet at Houtbaar: a one day mini-festival in the garden, built around live energy, DJs, musicians and people coming together for the same reason: to move.
The garden opens in the afternoon with jams and DJ sets moving through the day, hosted by SYNGA as the voice carrying the energy between the garden and the stage. As the evening builds, Estafête brings live musicians into the room and the dancefloor starts to heat up.
Around it all: a pop-up tattoo studio, familiar faces, new friends, and that easy summer feeling of staying a little longer than you planned.
When the garden closes at 23:00, the night moves inside and keeps going until 02:00.
Ink
Pop-up Tattoo Studio
A piece of Wonderland to carry with you, woven into the day instead of tucked away as an afterthought.
Night
Inside Afterparty
The garden closes at 23:00, then the room moves inside and carries on until 02:00.
Line-up
Who's Bringing The Groove
The timetable is still taking shape, so this is not a play-by-play. It is a feel for the people and sounds carrying the day: live energy, deep record bags, warm club pressure and Boyos groove.
Open Jam
The open jam is not a fixed show slot or a closed band moment. It is the loose, participatory pulse of the afternoon: musicians, friends and the garden finding the rhythm together.
SYNGA
SYNGA is the voice guiding Summer Jam through the day: hosting the open jams and Estafête, bringing soulful R&B instinct, synth textures and raw beat energy into the garden.
Estafête
Estafête is a live formation put together for movement, not a traditional band with a fixed front. DJs and musicians pass energy back and forth, letting the set build in the moment.
TOMMASO
Tommaso Conforti is a Florence-born, Chicago-based vinyl selector and record digger with a deep ear for house music history and global rarities. His sets connect forgotten gems, soulful club records and forward-moving dancefloor moments. He is also behind Elevator Music Live, a platform creating space for artists and live dance music culture between Chicago and wider dancefloor communities.
UMOJA
UMOJA are a Dutch DJ and producer duo with a name that means togetherness. Their sound moves through global grooves, percussion, bass, and warm club energy, always with the feeling of people meeting each other on the floor.
Shamis
Shamis is a producer, DJ, vocalist, and co-founder of INI Movement. His work blends soulful electronics, live instinct, and community energy, making him a natural guide between the jam, the stage, and the late-night room.
Boyos Soundsystem
Boyos Soundsystem bring the essential groove at the heart of the day: disco, house, Brazilian boogie, soca, zouk, italo, afro house, and the kind of selections that make a garden feel like a shared living room.
Together with
The Partners
Boyos Wonderland
The event world around Boyos Collective: music, food, art, tattoos, and a dancefloor with room for everyone.
Visit
INI Movement
A creative movement bringing live music and open participation into the day.
Visit
Houtbaar
The Haarlem home base for the open-air part of the day and the indoor continuation after 23:00.
VisitPowered by Oshi
Oshi helps power the community energy around the day, connecting the music, movement and people around Summer Jam.
VisitPractical info
Good To Know
Saturday 25 July 2026
Summer in Haarlem, starting early afternoon.
13:00 – 23:00 + afterparty till 02:00
The garden closes at 23:00, then the night moves inside until 02:00.
Houtbaar, Haarlem
Woudplein 2, 2031CZ Haarlem
Meet us where the garden turns into a dancefloor.
Summer Jam brings Boyos Wonderland and INI Movement together for a full day of open jam energy, DJs, live musicians, pop-up tattoos and warm selections. We start outside at Houtbaar in Haarlem, then move inside after 23:00 and keep going till 02:00. Tickets start at €20 through Houtbaar.
