A CERN visit is mostly about the Science Gateway exhibition centre rather than going deep underground. You'll walk through interactive exhibits on particle physics, watch short films about the Large Hadron Collider, and see real accelerator hardware. Guided tours, when available, last 2-3 hours and include a bus ride around the site perimeter with stops at key points like the ATLAS visitor centre. Expect decent crowds, decent but not mind-blowing wow factor unless you're into physics. The whole experience feels more like a solid science museum than a thrilling behind-the-scenes look.
Best time is spring or autumn on a weekday morning. Summer gets hot and packed with school groups. Book as far ahead as possible because slots fill quickly. Expect to pay around $15-35 per person depending on whether you do a self-guided visit or a guided tour; kids often get discounts or free entry. Transport from central Geneva adds another $10-15 round-trip by tram and walking.
Tip: pick the guided tour if you can get tickets – it gives context the exhibits alone don't. Skip trying to see everything in one go; focus on the permanent exhibition and one film. Wear comfortable shoes and bring a jacket – parts of the site are surprisingly chilly even in summer.
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