As far as I can see on their website, the concert is in the park. The following is NOT allowed: Food & drinks (can be bought on site), campingchairs, tables, umbrellas, glassbottles, cans, thermosflasks or systemcameras. They however accept smaller digital cameras & cellphone cameras. Age limit 13 yrs. Last concert I was on in the park, we brought just something to sit on on the ground and rainjackets (was sunny though). Bought drinks and something to eat there. But recommend you to eat properly before going there - lots of nice restaurants close by. For further questions, you can phone Trädgårdsföreningen at +46 31 365 00 00.

This park is always worth visiting, but of course nicer from May-September, as it's warmer, greener and more flowers then + possible to sit outdoors. But on a warm April day, a really nice place to go or just stroll through.